diff --git a/panda/src/egg/eggVertexPool.cxx b/panda/src/egg/eggVertexPool.cxx
index a668b3e421..0d513c6b5c 100644
--- a/panda/src/egg/eggVertexPool.cxx
+++ b/panda/src/egg/eggVertexPool.cxx
@@ -19,6 +19,8 @@
 
 #include "indent.h"
 
+#include <iterator>
+
 TypeHandle EggVertexPool::_type_handle;
 
 ////////////////////////////////////////////////////////////////////
diff --git a/panda/src/express/memoryUsage.cxx b/panda/src/express/memoryUsage.cxx
index 328ec84416..d5e039d484 100644
--- a/panda/src/express/memoryUsage.cxx
+++ b/panda/src/express/memoryUsage.cxx
@@ -28,6 +28,7 @@
 
 #include "config_express.h"
 #include <algorithm>
+#include <iterator>
 
 MemoryUsage *MemoryUsage::_global_ptr;
 
diff --git a/pandatool/src/palettizer/textureImage.cxx b/pandatool/src/palettizer/textureImage.cxx
index efe2a2fa4a..da036f00f3 100644
--- a/pandatool/src/palettizer/textureImage.cxx
+++ b/pandatool/src/palettizer/textureImage.cxx
@@ -30,6 +30,8 @@
 #include "indirectCompareNames.h"
 #include "pvector.h"
 
+#include <iterator>
+
 TypeHandle TextureImage::_type_handle;
 
 ////////////////////////////////////////////////////////////////////