diff --git a/test/Lexer/token-concat-2.c b/test/Lexer/token-concat-2.c
deleted file mode 100644
index 7d3cd64..0000000
--- a/test/Lexer/token-concat-2.c
+++ /dev/null
@@ -1,4 +0,0 @@
-// RUN: %clang_cc1 -E -x c -o - %s | grep '[.][*]'
-// PR4395
-#define X .*
-X
diff --git a/test/Lexer/token-concat.c b/test/Lexer/token-concat.c
index 551af95..0a2cbee 100644
--- a/test/Lexer/token-concat.c
+++ b/test/Lexer/token-concat.c
@@ -1,4 +1,11 @@
-// RUN: %clang_cc1 -E -x c -o %t %s
-// RUN: grep 'IDENT.2' %t
+// RUN: %clang_cc1 -E %s | FileCheck --strict-whitespace %s
 
 IDENT.2
+// CHECK: {{^}}IDENT.2{{$}}
+
+
+// PR4395
+#define X .*
+X
+// CHECK: {{^}}.*{{$}}
+