diff --git a/ConflictSet.cpp b/ConflictSet.cpp
index d6ea2f9..f1e0955 100644
--- a/ConflictSet.cpp
+++ b/ConflictSet.cpp
@@ -4237,7 +4237,7 @@ checkMaxVersion(Node *root, Node *node, InternalVersionT oldestVersion,
   bool success = true;
 
   if (node->partialKeyLen > 0) {
-    fprintf(stderr, "Root cannot have a partial key");
+    fprintf(stderr, "Root cannot have a partial key\n");
     success = false;
   }
   checkParentPointers(node, success);