diff --git a/oscar/oscar.pro b/oscar/oscar.pro
index bb106733..bfeab7f3 100644
--- a/oscar/oscar.pro
+++ b/oscar/oscar.pro
@@ -476,7 +476,13 @@ QMAKE_CXXFLAGS += -Wno-error=deprecated-declarations
 memdebug {
     !win32 {  # add memory checking on Linux and macOS debug builds
         QMAKE_CFLAGS += -g -Werror -fsanitize=address -fno-omit-frame-pointer -fno-common -fsanitize-address-use-after-scope
+        lessThan(QT_MAJOR_VERSION,5)|lessThan(QT_MINOR_VERSION,9) {
+            QMAKE_CFLAGS -= -fsanitize-address-use-after-scope
+        }
         QMAKE_CXXFLAGS += -g -Werror -fsanitize=address -fno-omit-frame-pointer -fno-common -fsanitize-address-use-after-scope
+        lessThan(QT_MAJOR_VERSION,5)|lessThan(QT_MINOR_VERSION,9) {
+            QMAKE_CXXFLAGS -= -fsanitize-address-use-after-scope
+        }
         QMAKE_LFLAGS += -fsanitize=address
     }
 }