diff --git a/src/Makefile.cfg b/src/Makefile.cfg
index 31721839..68cced81 100644
--- a/src/Makefile.cfg
+++ b/src/Makefile.cfg
@@ -190,6 +190,9 @@ endif
 ifdef GCC46
 WFLAGS+=-Wno-suggest-attribute=noreturn
 endif
+ifdef GCC71
+WFLAGS+=-Wno-error=implicit-fallthrough -Wimplicit-fallthrough=3
+endif
 
 ifndef MINGW
 ifdef GCC45