diff --git a/clang/lib/Lex/TokenLexer.cpp b/clang/lib/Lex/TokenLexer.cpp
index c42966928e52..ed2b8cdabd1c 100644
--- a/clang/lib/Lex/TokenLexer.cpp
+++ b/clang/lib/Lex/TokenLexer.cpp
@@ -305,6 +305,7 @@ void TokenLexer::ExpandFunctionArguments() {
         // identifier.
         ResultToks[FirstResult].setFlagValue(Token::LeadingSpace,
                                              NextTokGetsSpace);
+        ResultToks[FirstResult].setFlagValue(Token::StartOfLine, false);
         NextTokGetsSpace = false;
       }
       continue;
diff --git a/clang/test/Preprocessor/stringize_space.c b/clang/test/Preprocessor/stringize_space.c
index 2d79d478e39d..ae70bf18187c 100644
--- a/clang/test/Preprocessor/stringize_space.c
+++ b/clang/test/Preprocessor/stringize_space.c
@@ -12,3 +12,9 @@ c)
 
 // CHECK: {{^}}"a c"{{$}}
 
+#define str(x) #x
+#define f(x) str(-x)
+f(
+    1)
+
+// CHECK: {{^}}"-1"