1 files changed, 4 insertions, 2 deletions
diff --git a/test/source/diff/diff.cxx b/test/source/diff/diff.cxx
index 567ec804d448..bb460f788930 100644
--- a/test/source/diff/diff.cxx
+++ b/test/source/diff/diff.cxx
@@ -38,9 +38,11 @@ struct tolerance
     }
 
     tolerance()
+        : elementName(NULL)
+        , attribName(NULL)
+        , relative(false)
+        , value(0.0)
     {
-        elementName = NULL;
-        attribName = NULL;
     }
 
     tolerance(const tolerance& tol)