diff --git a/clang-tools-extra/pseudo/lib/GLR.cpp b/clang-tools-extra/pseudo/lib/GLR.cpp
index 8e6638bd3b89e5..1cee8f86e599dd 100644
--- a/clang-tools-extra/pseudo/lib/GLR.cpp
+++ b/clang-tools-extra/pseudo/lib/GLR.cpp
@@ -380,7 +380,7 @@ class GLRReduce {
       RID = A.getReduceRule();
     }
     if (!RID.hasValue())
-      return false;
+      return true; // no reductions available, but we've processed the head!
     const auto &Rule = Params.G.lookupRule(*RID);
     const GSS::Node *Base = Head;
     TempSequence.resize_for_overwrite(Rule.Size);