diff --git a/test/Preprocessor/init.c b/test/Preprocessor/init.c
index eaaa574..22e2eae 100644
--- a/test/Preprocessor/init.c
+++ b/test/Preprocessor/init.c
@@ -36,7 +36,7 @@
 // C99:#define __STRICT_ANSI__ 1
 //
 // 
-// RUN: clang-cc -E -dM -fms-extensions=0 < /dev/null | FileCheck -check-prefix COMMON %s
+// RUN: clang-cc -E -dM < /dev/null | FileCheck -check-prefix COMMON %s
 //
 // COMMON:#define __CONSTANT_CFSTRINGS__ 1
 // COMMON:#define __FINITE_MATH_ONLY__ 0
@@ -108,7 +108,7 @@
 // PASCAL:#define __PASCAL_STRINGS__ 1
 //
 // 
-// RUN: clang-cc -E -dM -fms-extensions=0 < /dev/null | FileCheck -check-prefix SCHAR %s
+// RUN: clang-cc -E -dM < /dev/null | FileCheck -check-prefix SCHAR %s
 // 
 // SCHAR:#define __STDC__ 1
 // SCHAR-NOT:#define __UNSIGNED_CHAR__
diff --git a/test/Preprocessor/line-directive.c b/test/Preprocessor/line-directive.c
index b79b1d9..33dd9bb 100644
--- a/test/Preprocessor/line-directive.c
+++ b/test/Preprocessor/line-directive.c
@@ -1,4 +1,4 @@
-// RUN: clang-cc -fsyntax-only -verify -pedantic -fms-extensions=0 %s
+// RUN: clang-cc -fsyntax-only -verify -pedantic %s
 // RUN: clang-cc -E %s 2>&1 | grep 'blonk.c:92:2: error: #error ABC'
 // RUN: clang-cc -E %s 2>&1 | grep 'blonk.c:93:2: error: #error DEF'
 
diff --git a/test/Preprocessor/macro_paste_bcpl_comment.c b/test/Preprocessor/macro_paste_bcpl_comment.c
index 0637a87..8bbee5d 100644
--- a/test/Preprocessor/macro_paste_bcpl_comment.c
+++ b/test/Preprocessor/macro_paste_bcpl_comment.c
@@ -1,4 +1,4 @@
-// RUN: clang-cc %s -Eonly -fms-extensions=0 2>&1 | grep error
+// RUN: clang-cc %s -Eonly 2>&1 | grep error
 
 #define COMM1 / ## /
 COMM1