diff --git a/plugins/devel/itemhacks.cpp b/plugins/devel/itemhacks.cpp
index b2c1918c6..66ba8e45f 100644
--- a/plugins/devel/itemhacks.cpp
+++ b/plugins/devel/itemhacks.cpp
@@ -10,6 +10,7 @@
 
 using std::vector;
 using std::string;
+using std::endl;
 using namespace DFHack;
 
 //////////////////////
diff --git a/plugins/devel/kittens.cpp b/plugins/devel/kittens.cpp
index 156686a1e..89ece51b6 100644
--- a/plugins/devel/kittens.cpp
+++ b/plugins/devel/kittens.cpp
@@ -28,6 +28,7 @@
 
 using std::vector;
 using std::string;
+using std::endl;
 using namespace DFHack;
 
 DFHACK_PLUGIN("kittens");
diff --git a/plugins/devel/tiles.cpp b/plugins/devel/tiles.cpp
index 61640257a..f3b825299 100644
--- a/plugins/devel/tiles.cpp
+++ b/plugins/devel/tiles.cpp
@@ -6,6 +6,7 @@
 #include <sstream>
 using std::vector;
 using std::string;
+using std::endl;
 
 #include "Core.h"
 #include <Console.h>