diff --git a/make/lib/CoreLibraries.gmk b/make/lib/CoreLibraries.gmk
index c10d2535f2f..c7286572be6 100644
--- a/make/lib/CoreLibraries.gmk
+++ b/make/lib/CoreLibraries.gmk
@@ -144,7 +144,7 @@ $(eval $(call SetupJdkLibrary, BUILD_LIBZIP, \
     CFLAGS := $(CFLAGS_JDKLIB) \
         $(LIBZ_CFLAGS), \
     CFLAGS_unix := $(BUILD_LIBZIP_MMAP) -UDEBUG, \
-    DISABLED_WARNINGS_gcc := unused-function, \
+    DISABLED_WARNINGS_gcc := unused-function implicit-fallthrough, \
     LDFLAGS := $(LDFLAGS_JDKLIB) \
         $(call SET_SHARED_LIBRARY_ORIGIN), \
     LIBS_unix := -ljvm -ljava $(LIBZ_LIBS), \
@@ -210,7 +210,7 @@ $(eval $(call SetupJdkLibrary, BUILD_LIBJLI, \
     EXTRA_FILES := $(LIBJLI_EXTRA_FILES), \
     OPTIMIZATION := HIGH, \
     CFLAGS := $(CFLAGS_JDKLIB) $(LIBJLI_CFLAGS), \
-    DISABLED_WARNINGS_gcc := unused-function, \
+    DISABLED_WARNINGS_gcc := unused-function implicit-fallthrough, \
     DISABLED_WARNINGS_clang := sometimes-uninitialized format-nonliteral, \
     LDFLAGS := $(LDFLAGS_JDKLIB) \
         $(call SET_SHARED_LIBRARY_ORIGIN), \