diff --git a/toolchain/toolchain-external/toolchain-external.mk b/toolchain/toolchain-external/toolchain-external.mk
index 70781db0ff..6816b3ffa3 100644
--- a/toolchain/toolchain-external/toolchain-external.mk
+++ b/toolchain/toolchain-external/toolchain-external.mk
@@ -467,7 +467,7 @@ define TOOLCHAIN_EXTERNAL_CONFIGURE_CMDS
 		exit 1 ; \
 	fi ; \
 	$(call check_kernel_headers_version,\
-		$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS)),\
+		$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC)),\
 		$(call qstrip,$(BR2_TOOLCHAIN_HEADERS_AT_LEAST))); \
 	if test "$(BR2_arm)" = "y" ; then \
 		$(call check_arm_abi,\