diff --git a/clang/unittests/Analysis/ExprMutationAnalyzerTest.cpp b/clang/unittests/Analysis/ExprMutationAnalyzerTest.cpp
index 720999207083d..4e97174c17d95 100644
--- a/clang/unittests/Analysis/ExprMutationAnalyzerTest.cpp
+++ b/clang/unittests/Analysis/ExprMutationAnalyzerTest.cpp
@@ -86,9 +86,7 @@ mutatedBy(const SmallVectorImpl<BoundNodes> &Results, ASTUnit *AST) {
 }
 
 std::string removeSpace(std::string s) {
-  s.erase(std::remove_if(s.begin(), s.end(),
-                         [](char c) { return llvm::isSpace(c); }),
-          s.end());
+  llvm::erase_if(s, llvm::isSpace);
   return s;
 }