diff --git a/test/testtokenize.cpp b/test/testtokenize.cpp
index 86ca4d1eb..181c2dcf3 100644
--- a/test/testtokenize.cpp
+++ b/test/testtokenize.cpp
@@ -100,7 +100,7 @@ private:
             {
                 if (tok->linenr() != tok->next()->linenr())
                 {
-                    for (int i = tok->linenr();i < tok->next()->linenr();++i)
+                    for (unsigned int i = tok->linenr();i < tok->next()->linenr();++i)
                         ostr << "\n";
                 }
                 else