diff --git a/direct/src/plugin/p3dPythonMain.cxx b/direct/src/plugin/p3dPythonMain.cxx
index e68bda6c7b..88fc023c3b 100644
--- a/direct/src/plugin/p3dPythonMain.cxx
+++ b/direct/src/plugin/p3dPythonMain.cxx
@@ -16,6 +16,7 @@
 
 #include <iostream>
 #include <sstream>
+#include <string.h>  // strrchr
 using namespace std;
 
 #ifndef _WIN32