diff --git a/common.pri b/common.pri
index 9a317ff6b..83e2fbeee 100644
--- a/common.pri
+++ b/common.pri
@@ -434,7 +434,8 @@ g++7:GCC_DEBUG_CXXFLAGS += \
     -Wduplicated-branches \
     -Wrestrict \
     -Walloc-zero \
-    -Wnonnull
+    -Wnonnull \
+    -Wno-stringop-overflow # cannot suppress warning in Qt headers
 
 # Since GCC 8
 g++8:GCC_DEBUG_CXXFLAGS += \
diff --git a/src/libs/vlayout/warnings.pri b/src/libs/vlayout/warnings.pri
index 59c16118c..2f715e3cc 100644
--- a/src/libs/vlayout/warnings.pri
+++ b/src/libs/vlayout/warnings.pri
@@ -38,9 +38,6 @@ unix {
                 QMAKE_LFLAGS += -fsanitize=undefined
             }
         }
-
-        QMAKE_CXXFLAGS += \
-            -Wno-stringop-overflow
     }
 
     *clang*{
diff --git a/src/libs/vtest/warnings.pri b/src/libs/vtest/warnings.pri
index cdd0b84de..f4a43deba 100644
--- a/src/libs/vtest/warnings.pri
+++ b/src/libs/vtest/warnings.pri
@@ -37,9 +37,6 @@ unix {
         # want them in global list. Compromise decision delete them from local list.
         QMAKE_CXXFLAGS -= \
             -Wswitch-default
-
-        QMAKE_CXXFLAGS += \
-            -Wno-stringop-overflow
     }
 
     *clang*{