diff --git a/toolchains/common.cmake b/toolchains/common.cmake
index c3eb449..d099c5b 100644
--- a/toolchains/common.cmake
+++ b/toolchains/common.cmake
@@ -20,7 +20,7 @@
     string(APPEND CMAKE_${language}_FLAGS_INIT "-Wno-type-limits ")
     string(APPEND CMAKE_${language}_FLAGS_INIT "-gdwarf-4 ")
     string(APPEND CMAKE_${language}_FLAGS_INIT "-D_FORTIFY_SOURCE=2 ")
-    string(APPEND CMAKE_${language}_FLAGS_DEBUG_INIT "-Og -Wnull-dereference ")
+    string(APPEND CMAKE_${language}_FLAGS_DEBUG_INIT "-Og -Wnull-dereference -Wstrict-aliasing=1 ")
     string(APPEND CMAKE_${language}_FLAGS_RELEASE_INIT "-g ")
 endforeach()