diff --git a/src/makeBaseExt/top/configure/os/CONFIG_SITE.darwin-x86.darwin-x86 b/src/makeBaseExt/top/configure/os/CONFIG_SITE.darwin-x86.darwin-x86
index fe8cd431e..522510666 100644
--- a/src/makeBaseExt/top/configure/os/CONFIG_SITE.darwin-x86.darwin-x86
+++ b/src/makeBaseExt/top/configure/os/CONFIG_SITE.darwin-x86.darwin-x86
@@ -28,9 +28,9 @@ PYTHON_INCLUDE=/System/Library/Frameworks/Python.framework/Versions/2.3/include/
 # XDarwin
 #
 X11_LIB=/usr/X11R6/lib
-X11_INC=/usr/X11R6/include/X11
+X11_INC=/usr/X11R6/include
 XPM_LIB=/usr/X11R6/lib
-XPM_INC=/usr/X11R6/include/X11
+XPM_INC=/usr/X11R6/include
 
 #
 # Fink OpenMotif