diff --git a/tool/lib/journalLib.jq b/tool/lib/journalLib.jq
index f1bf1d8..94a811a 100644
--- a/tool/lib/journalLib.jq
+++ b/tool/lib/journalLib.jq
@@ -20,7 +20,7 @@ def addStandardDeviations($expectationX; $standardDeviationX; $expectationY; $st
   (pow($expectationX; 2) * pow($expectationY; 2)) as $expectations |
   ($sumX * $sumY - $expectations) as $productVariance |
   if $productVariance > 0.0000001 then
-    $productVariance | sqrt
+    $productVariance | debug | sqrt
   else 
     null
   end;