diff --git a/Makefile.clang b/Makefile.clang
index f182fecbdcab2d7504db5d2d7dc2e3fcebe0b3b3..9b9251a836e6fef94b3eb41531f0f539e9de519d 100644
--- a/Makefile.clang
+++ b/Makefile.clang
@@ -52,7 +52,7 @@ OBJS=\
 
 DEPS=$(OBJS:.o=.d)
 CXXFLAGS?=$(CLANG_CXXFLAGS)
-CXXFLAGS+=-Wno-enum-compare -DCLANG_BIN_DIR=\"$(CLANG_BIN_DIR)\"
+CXXFLAGS+=-Wno-enum-compare -DCLANG_BIN_DIR=\"$(CLANG_BIN_DIR)\" -Wall
 CFLAGS?=$(CLANG_CFLAGS)
 CFLAGS+=-Wno-enum-compare