diff --git a/direct/src/plugin/Sources.pp b/direct/src/plugin/Sources.pp
index 20f0430ae3..200a32115b 100644
--- a/direct/src/plugin/Sources.pp
+++ b/direct/src/plugin/Sources.pp
@@ -7,7 +7,7 @@
   #define TARGET p3d_plugin
   #define LIB_PREFIX
 
-  #define OTHER_LIBS subprocbuffer
+  #define OTHER_LIBS $[if $[OSX_PLATFORM],subprocbuffer]
   
   // We need this because we don't
   // include dtool_config.h.