diff --git a/common.pri b/common.pri
index eabee0196..cb5c93927 100644
--- a/common.pri
+++ b/common.pri
@@ -424,7 +424,7 @@ g++7:GCC_DEBUG_CXXFLAGS += \
     -Wrestrict \
     -Walloc-zero \
     -Wnonnull \
-    -Wno-stringop-overflow # cannot suppress warning in Qt headers
+    -Wstringop-overflow=0 # cannot suppress warning in Qt headers
 
 # Since GCC 8
 g++8:GCC_DEBUG_CXXFLAGS += \