diff --git a/mono-core.spec b/mono-core.spec
index 364194d..6d531fb 100644
--- a/mono-core.spec
+++ b/mono-core.spec
@@ -1,5 +1,5 @@
 %{!?ext_man: %define ext_man .gz}
-%define llvm yes
+%define llvm no
 %define sgen yes
 
 %ifnarch %ix86 x86_64