diff --git a/package/imx-mkimage/imx-mkimage.mk b/package/imx-mkimage/imx-mkimage.mk
index 9f8e7d2d01..d8d8b10b32 100644
--- a/package/imx-mkimage/imx-mkimage.mk
+++ b/package/imx-mkimage/imx-mkimage.mk
@@ -14,7 +14,9 @@ HOST_IMX_MKIMAGE_DEPENDENCIES = host-zlib
 ifeq ($(BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX8M),y)
 # i.MX8M needs a different binary
 define HOST_IMX_MKIMAGE_BUILD_CMDS
-	$(HOST_MAKE_ENV) $(MAKE) $(HOST_CONFIGURE_OPTS) -C $(@D)/iMX8M -f soc.mak mkimage_imx8
+	$(HOST_MAKE_ENV) $(MAKE) $(HOST_CONFIGURE_OPTS) \
+		CFLAGS="$(HOST_CFLAGS) -std=c99" \
+		-C $(@D)/iMX8M -f soc.mak mkimage_imx8
 endef
 define HOST_IMX_MKIMAGE_INSTALL_CMDS
 	$(INSTALL) -D -m 755 $(@D)/iMX8M/mkimage_imx8 $(HOST_DIR)/bin/mkimage_imx8
@@ -23,7 +25,9 @@ endef
 else
 # i.MX8 and i.MX8X
 define HOST_IMX_MKIMAGE_BUILD_CMDS
-	$(HOST_MAKE_ENV) $(MAKE) $(HOST_CONFIGURE_OPTS) -C $(@D) MKIMG=mkimage_imx8 mkimage_imx8
+	$(HOST_MAKE_ENV) $(MAKE) $(HOST_CONFIGURE_OPTS) \
+		CFLAGS="$(HOST_CFLAGS) -std=c99" \
+		-C $(@D) MKIMG=mkimage_imx8 mkimage_imx8
 endef
 define HOST_IMX_MKIMAGE_INSTALL_CMDS
 	$(INSTALL) -D -m 755 $(@D)/mkimage_imx8 $(HOST_DIR)/bin/mkimage_imx8