diff --git a/llvm.spec b/llvm.spec
index e02f55c..878596a 100644
--- a/llvm.spec
+++ b/llvm.spec
@@ -269,7 +269,7 @@ cmake -G "Unix Makefiles" \
 %endif
       -DLLVM_REQUIRES_RTTI=ON \
       -DLLVM_ENABLE_TIMESTAMPS=OFF \
-      -DLLVM_ENABLE_ASSERTIONS=OFF \
+      -DLLVM_ENABLE_ASSERTIONS=ON \
       -DLLVM_ENABLE_PIC=ON \
 %if 0%{?suse_version} >= 1220
       -DLLVM_BINUTILS_INCDIR=/usr/include \