diff --git a/utils/bandwidthd/Makefile b/utils/bandwidthd/Makefile
index 74e37f89..bd664e7e 100644
--- a/utils/bandwidthd/Makefile
+++ b/utils/bandwidthd/Makefile
@@ -140,7 +140,7 @@ CONFIGURE_ARGS += \
 	ac_cv_lib_sqlite3_sqlite3_open=no
 endif
 
-EXTRA_CFLAGS+= $(TARGET_CPPFLAGS)
+EXTRA_CFLAGS+= $(TARGET_CPPFLAGS) -std=gnu89
 EXTRA_LDFLAGS+= $(TARGET_LDFLAGS) -Wl,-rpath-link,$(STAGING_DIR)/usr/lib
 
 define Package/bandwidthd/install