diff --git a/Makefile b/Makefile
index 769a2e5a8eaf..37a1f3039623 100644
--- a/Makefile
+++ b/Makefile
@@ -517,7 +517,7 @@ ifneq ($(srctree),.)
 	{ echo "# this is build directory, ignore it"; echo "*"; } > .gitignore
 endif
 
-ifneq ($(shell $(CC) --version 2>&1 | head -n 1 | grep clang),)
+ifneq ($(shell $(CC) --version 2>&1 | grep clang),)
 ifneq ($(CROSS_COMPILE),)
 CLANG_TRIPLE	?= $(CROSS_COMPILE)
 CLANG_FLAGS	:= --target=$(notdir $(CLANG_TRIPLE:%-=%))
diff --git a/init/Kconfig b/init/Kconfig
index 36894c9fb420..725a1862f5ba 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -18,7 +18,7 @@ config GCC_VERSION
 	default 0
 
 config CC_IS_CLANG
-	def_bool $(success,$(CC) --version | head -n 1 | grep -q clang)
+	def_bool $(success,$(CC) --version | grep -q clang)
 
 config CLANG_VERSION
 	int