diff --git a/library/Core.cpp b/library/Core.cpp
index 09344135c..59334906d 100644
--- a/library/Core.cpp
+++ b/library/Core.cpp
@@ -281,7 +281,7 @@ static command_result runLuaScript(color_ostream &out, std::string name, vector<
     return ok ? CR_OK : CR_FAILURE;
 }
 
-static command_result runRubyScript(PluginManager *plug_mgr, std::string name, vector<string> &args)
+static command_result runRubyScript(color_ostream &out, PluginManager *plug_mgr, std::string name, vector<string> &args)
 {
     std::string rbcmd = "$script_args = [";
     for (size_t i = 0; i < args.size(); i++)
@@ -290,7 +290,7 @@ static command_result runRubyScript(PluginManager *plug_mgr, std::string name, v
 
     rbcmd += "load './hack/scripts/" + name + ".rb'";
 
-    return plug_mgr->eval_ruby(rbcmd.c_str());
+    return plug_mgr->eval_ruby(out, rbcmd.c_str());
 }
 
 command_result Core::runCommand(color_ostream &out, const std::string &command)
@@ -632,7 +632,7 @@ command_result Core::runCommand(color_ostream &con, const std::string &first, ve
                 if (fileExists(filename + ".lua"))
                     res = runLuaScript(con, first, parts);
                 else if (plug_mgr->eval_ruby && fileExists(filename + ".rb"))
-                    res = runRubyScript(plug_mgr, first, parts);
+                    res = runRubyScript(con, plug_mgr, first, parts);
                 else
                     con.printerr("%s is not a recognized command.\n", first.c_str());
             }
diff --git a/library/PluginManager.cpp b/library/PluginManager.cpp
index a314883e1..ff7524318 100644
--- a/library/PluginManager.cpp
+++ b/library/PluginManager.cpp
@@ -188,7 +188,7 @@ bool Plugin::load(color_ostream &con)
     plugin_shutdown = (command_result (*)(color_ostream &)) LookupPlugin(plug, "plugin_shutdown");
     plugin_onstatechange = (command_result (*)(color_ostream &, state_change_event)) LookupPlugin(plug, "plugin_onstatechange");
     plugin_rpcconnect = (RPCService* (*)(color_ostream &)) LookupPlugin(plug, "plugin_rpcconnect");
-    plugin_eval_ruby = (command_result (*)(const char*)) LookupPlugin(plug, "plugin_eval_ruby");
+    plugin_eval_ruby = (command_result (*)(color_ostream &, const char*)) LookupPlugin(plug, "plugin_eval_ruby");
     index_lua(plug);
     this->name = *plug_name;
     plugin_lib = plug;
diff --git a/library/include/PluginManager.h b/library/include/PluginManager.h
index 5da9fc92f..22171a15c 100644
--- a/library/include/PluginManager.h
+++ b/library/include/PluginManager.h
@@ -209,7 +209,7 @@ namespace DFHack
         command_result (*plugin_onupdate)(color_ostream &);
         command_result (*plugin_onstatechange)(color_ostream &, state_change_event);
         RPCService* (*plugin_rpcconnect)(color_ostream &);
-        command_result (*plugin_eval_ruby)(const char*);
+        command_result (*plugin_eval_ruby)(color_ostream &, const char*);
     };
     class DFHACK_EXPORT PluginManager
     {
@@ -238,7 +238,7 @@ namespace DFHack
         {
             return all_plugins.size();
         }
-        command_result (*eval_ruby)(const char*);
+        command_result (*eval_ruby)(color_ostream &, const char*);
     // DATA
     private:
         tthread::mutex * cmdlist_mutex;
diff --git a/plugins/ruby/ruby.cpp b/plugins/ruby/ruby.cpp
index 0f5264515..f1f007263 100644
--- a/plugins/ruby/ruby.cpp
+++ b/plugins/ruby/ruby.cpp
@@ -35,9 +35,12 @@ tthread::mutex *m_irun;
 tthread::mutex *m_mutex;
 static volatile RB_command r_type;
 static volatile command_result r_result;
+static color_ostream *r_console;       // color_ostream given as argument, if NULL resort to console_proxy
 static const char *r_command;
 static tthread::thread *r_thread;
 static int onupdate_active;
+static color_ostream_proxy *console_proxy;
+
 
 DFHACK_PLUGIN("ruby")
 
@@ -115,7 +118,7 @@ DFhackCExport command_result plugin_shutdown ( color_ostream &out )
 }
 
 // send a single ruby line to be evaluated by the ruby thread
-DFhackCExport command_result plugin_eval_ruby(const char *command)
+DFhackCExport command_result plugin_eval_ruby( color_ostream &out, const char *command)
 {
     // if dlopen failed
     if (!r_thread)
@@ -136,6 +139,7 @@ DFhackCExport command_result plugin_eval_ruby(const char *command)
 
     r_type = RB_EVAL;
     r_command = command;
+    r_console = &out;
     // wake ruby thread up
     m_irun->unlock();
 
@@ -144,6 +148,7 @@ DFhackCExport command_result plugin_eval_ruby(const char *command)
         tthread::this_thread::yield();
 
     ret = r_result;
+    r_console = NULL;
 
     // block ruby thread
     m_irun->lock();
@@ -164,7 +169,7 @@ DFhackCExport command_result plugin_onupdate ( color_ostream &out )
     if (!onupdate_active)
         return CR_OK;
 
-    return plugin_eval_ruby("DFHack.onupdate");
+    return plugin_eval_ruby(out, "DFHack.onupdate");
 }
 
 DFhackCExport command_result plugin_onstatechange ( color_ostream &out, state_change_event e)
@@ -187,7 +192,7 @@ DFhackCExport command_result plugin_onstatechange ( color_ostream &out, state_ch
 #undef SCASE
     }
 
-    return plugin_eval_ruby(cmd.c_str());
+    return plugin_eval_ruby(out, cmd.c_str());
 }
 
 static command_result df_rubyeval(color_ostream &out, std::vector <std::string> & parameters)
@@ -209,7 +214,7 @@ static command_result df_rubyeval(color_ostream &out, std::vector <std::string>
             full += " ";
     }
 
-    return plugin_eval_ruby(full.c_str());
+    return plugin_eval_ruby(out, full.c_str());
 }
 
 
@@ -265,7 +270,7 @@ static int df_loadruby(void)
 #if defined(WIN32)
         "./libruby.dll";
 #elif defined(__APPLE__)
-	"/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/libruby.1.dylib";
+        "/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/libruby.1.dylib";
 #else
         "hack/libruby.so";
 #endif
@@ -310,6 +315,13 @@ static void df_unloadruby(void)
     }
 }
 
+static void printerr(const char* fmt, const char *arg)
+{
+    if (r_console)
+        r_console->printerr(fmt, arg);
+    else
+        Core::printerr(fmt, arg);
+}
 
 // ruby thread code
 static void dump_rb_error(void)
@@ -320,19 +332,17 @@ static void dump_rb_error(void)
 
     s = rb_funcall(err, rb_intern("class"), 0);
     s = rb_funcall(s, rb_intern("name"), 0);
-    Core::printerr("E: %s: ", rb_string_value_ptr(&s));
+    printerr("E: %s: ", rb_string_value_ptr(&s));
 
     s = rb_funcall(err, rb_intern("message"), 0);
-    Core::printerr("%s\n", rb_string_value_ptr(&s));
+    printerr("%s\n", rb_string_value_ptr(&s));
 
     err = rb_funcall(err, rb_intern("backtrace"), 0);
     for (int i=0 ; i<8 ; ++i)
         if ((s = rb_ary_shift(err)) != Qnil)
-            Core::printerr(" %s\n", rb_string_value_ptr(&s));
+            printerr(" %s\n", rb_string_value_ptr(&s));
 }
 
-static color_ostream_proxy *console_proxy;
-
 // ruby thread main loop
 static void df_rubythread(void *p)
 {
@@ -428,13 +438,16 @@ static VALUE rb_dfonupdateactiveset(VALUE self, VALUE val)
 
 static VALUE rb_dfprint_str(VALUE self, VALUE s)
 {
-    console_proxy->print("%s", rb_string_value_ptr(&s));
+    if (r_console)
+        r_console->print("%s", rb_string_value_ptr(&s));
+    else
+        console_proxy->print("%s", rb_string_value_ptr(&s));
     return Qnil;
 }
 
 static VALUE rb_dfprint_err(VALUE self, VALUE s)
 {
-    Core::printerr("%s", rb_string_value_ptr(&s));
+    printerr("%s", rb_string_value_ptr(&s));
     return Qnil;
 }