diff --git a/library/DataDefs.cpp b/library/DataDefs.cpp
index f8f65b108..28761efa3 100644
--- a/library/DataDefs.cpp
+++ b/library/DataDefs.cpp
@@ -334,7 +334,7 @@ virtual_identity *virtual_identity::find(void *vtable)
         return p;
     }
 
-    std::cerr << "UNKNOWN CLASS '" << name << "': vtable = 0x"
+    std::cerr << "Class not in symbols.xml: '" << name << "': vtable = 0x"
               << std::hex << uintptr_t(vtable) << std::dec << std::endl;
 
     known[vtable] = NULL;
diff --git a/library/PluginManager.cpp b/library/PluginManager.cpp
index 05db0521d..db42c5c84 100644
--- a/library/PluginManager.cpp
+++ b/library/PluginManager.cpp
@@ -313,8 +313,12 @@ bool Plugin::load(color_ostream &con)
     if (plug_git_desc_ptr)
     {
         if (strcmp(dfhack_git_desc, plug_git_desc) != 0)
-            con.printerr("Warning: Plugin %s compiled for DFHack %s, running DFHack %s\n",
+        {
+            std::string msg = stl_sprintf("Warning: Plugin %s compiled for DFHack %s, running DFHack %s\n",
                 *plug_name, plug_git_desc, dfhack_git_desc);
+            con << msg;
+            cerr << msg;
+        }
     }
     else
         con.printerr("Warning: Plugin %s missing git information\n", *plug_name);