diff --git a/mozilla/gfx/Makefile.in b/mozilla/gfx/Makefile.in
index 95bc5dd3d09..9c75dfc074c 100644
--- a/mozilla/gfx/Makefile.in
+++ b/mozilla/gfx/Makefile.in
@@ -50,9 +50,12 @@ endif
 
 DIRS		+= public idl src
 
+ifdef MOZ_ENABLE_CAIRO_GFX
+DIRS            += thebes
+endif
+
 ifdef ENABLE_TESTS
 TOOL_DIRS	+= tests
 endif
 
 include $(topsrcdir)/config/rules.mk
-