diff --git a/makepanda/makepanda.py b/makepanda/makepanda.py
index 80aa35c452..4680410190 100755
--- a/makepanda/makepanda.py
+++ b/makepanda/makepanda.py
@@ -443,7 +443,7 @@ if (COMPILER=="LINUX"):
         # CgGL is covered by the Cg framework, and we don't need X11 components on OSX
         if (PkgSkip("NVIDIACG")==0 and not RUNTIME):
             PkgEnable("CGGL",  "",      ("CgGL"), "Cg/cgGL.h")
-        PkgEnable("X11",   "x11", "X11", "Xlib.h")
+        PkgEnable("X11",   "x11", "X11", ("X11", "X11/Xlib.h"))
         if (not RUNTIME):
             PkgEnable("XF86DGA", "xxf86dga", "Xxf86dga", "X11/extensions/xf86dga.h")