diff --git a/toolchains/common.cmake b/toolchains/common.cmake
index 295bed1..fe2f19c 100644
--- a/toolchains/common.cmake
+++ b/toolchains/common.cmake
@@ -14,8 +14,9 @@
     string(APPEND CMAKE_${language}_FLAGS_INIT "-fno-common ")
     string(APPEND CMAKE_${language}_FLAGS_INIT "-ffunction-sections ")
     string(APPEND CMAKE_${language}_FLAGS_INIT "-fdata-sections ")
-    string(APPEND CMAKE_${language}_FLAGS_INIT "-Wall -Werror ")
+    string(APPEND CMAKE_${language}_FLAGS_INIT "-Wall -Werror -Wstrict-overflow ")
     string(APPEND CMAKE_${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_RELEASE_INIT "-g ")
 endforeach()