1 files changed, 4 insertions, 1 deletions
diff --git a/clang/lib/Format/UnwrappedLineParser.h b/clang/lib/Format/UnwrappedLineParser.h
index 842b1086460..70e860c2b5d 100644
--- a/clang/lib/Format/UnwrappedLineParser.h
+++ b/clang/lib/Format/UnwrappedLineParser.h
@@ -127,7 +127,10 @@ public:
   // the UnwrappedLineParser once we switch to generate all tokens
   // up-front.
   virtual unsigned getPosition() { return 0; }
-  virtual FormatToken setPosition(unsigned Position) { assert(false); }
+  virtual FormatToken setPosition(unsigned Position) {
+    assert(false);
+    return FormatToken();
+  }
 };
 
 class UnwrappedLineParser {