diff --git a/share/mk/bsd.sys.mk b/share/mk/bsd.sys.mk
--- a/share/mk/bsd.sys.mk
+++ b/share/mk/bsd.sys.mk
@@ -117,6 +117,9 @@
 .if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 110100
 NO_WARRAY_PARAMETER=	-Wno-array-parameter
 .endif
+.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 120100
+NO_WUSE_AFTER_FREE=	-Wno-use-after-free
+.endif
 .endif # WARNS
 
 .if defined(FORMAT_AUDIT)