diff --git a/common.mk b/common.mk
index 058e906..7533291 100644
--- a/common.mk
+++ b/common.mk
@@ -279,7 +279,7 @@
 COMMON_CFLAGS-gcc := -fstack-protector-strong -fvisibility=internal -ggdb3 \
   -Wa,--noexecstack
 COMMON_CFLAGS-clang := -fstack-protector-all -fvisibility=hidden -ggdb
-COMMON_CFLAGS := -Wall -Werror -fno-strict-aliasing -O1 -Wformat=2
+COMMON_CFLAGS := -Wall -Werror -fno-strict-aliasing -O1
 CXXFLAGS += $(COMMON_CFLAGS) $(COMMON_CFLAGS-$(CXXDRIVER))
 CFLAGS += $(COMMON_CFLAGS) $(COMMON_CFLAGS-$(CDRIVER))
 CPPFLAGS += -D_FORTIFY_SOURCE=2