diff --git a/openbr/plugins/quality.cpp b/openbr/plugins/quality.cpp
index 5ebb34e..6d34ff4 100644
--- a/openbr/plugins/quality.cpp
+++ b/openbr/plugins/quality.cpp
@@ -181,9 +181,8 @@ class MatchProbabilityDistance : public Distance
     float compare(const Template &target, const Template &query) const
     {
         float rawScore = distance->compare(target, query);
-        return -log(rawScore+1);
-        //if (rawScore == -std::numeric_limits<float>::max()) return rawScore;
-        //return mp(rawScore, gaussian);
+        if (rawScore == -std::numeric_limits<float>::max()) return rawScore;
+        return mp(rawScore, gaussian);
     }
 
     void store(QDataStream &stream) const