diff --git a/package/feh/feh.mk b/package/feh/feh.mk
index 3f4c410440..7211dc7bdd 100644
--- a/package/feh/feh.mk
+++ b/package/feh/feh.mk
@@ -12,8 +12,8 @@ FEH_LICENSE = MIT
 FEH_LICENSE_FILES = COPYING
 
 define FEH_BUILD_CMDS
-	$(TARGET_MAKE_ENV) $(MAKE1) CC="$(TARGET_CC) $(TARGET_CFLAGS) $(TARGET_LDFLAGS)" \
-		-C $(@D) all
+	$(TARGET_MAKE_ENV) CFLAGS="$(TARGET_CFLAGS) -std=gnu99" $(MAKE1) \
+		CC="$(TARGET_CC) $(TARGET_LDFLAGS)" -C $(@D) all
 endef
 
 define FEH_INSTALL_TARGET_CMDS