diff --git a/3rdparty/Jamfile b/3rdparty/Jamfile
index 9964be2fe8..5538332d22 100644
--- a/3rdparty/Jamfile
+++ b/3rdparty/Jamfile
@@ -1,3 +1,3 @@
 SubDir HAIKU_TOP 3rdparty ;
 
-SubInclude HAIKU_TOP 3rdparty themes ;
+#SubInclude HAIKU_TOP 3rdparty mmu_man ;