diff --git a/configure b/configure
index 8108e10752a..a3ae7dc73d0 100755
--- a/configure
+++ b/configure
@@ -633,8 +633,6 @@ esac
 # Adjust perf and debug options for debug mode
 if [ -n "$CFG_ENABLE_DEBUG" ]; then
     msg "debug mode enabled, setting performance options"
-    CFG_DISABLE_OPTIMIZE=1
-    CFG_DISABLE_OPTIMIZE_CXX=1
     CFG_ENABLE_LLVM_ASSERTIONS=1
     CFG_ENABLE_DEBUG_ASSERTIONS=1
     CFG_ENABLE_DEBUG_JEMALLOC=1