diff --git a/configure b/configure
index b23cfaf976f..97c998a5cda 100755
--- a/configure
+++ b/configure
@@ -631,7 +631,6 @@ if [ -n "$CFG_ENABLE_DEBUG" ]; then
     msg "debug mode enabled, setting performance options"
     CFG_DISABLE_OPTIMIZE=1
     CFG_DISABLE_OPTIMIZE_CXX=1
-    CFG_DISABLE_OPTIMIZE_LLVM=1
     CFG_ENABLE_LLVM_ASSERTIONS=1
     CFG_ENABLE_DEBUG_ASSERTIONS=1
     CFG_ENABLE_DEBUG_JEMALLOC=1