diff --git a/sdk/openbr_plugin.cpp b/sdk/openbr_plugin.cpp
index 7215a29..3941a46 100644
--- a/sdk/openbr_plugin.cpp
+++ b/sdk/openbr_plugin.cpp
@@ -1256,6 +1256,13 @@ float Distance::compare(const Template &target, const Template &query) const
         }
     }
 
+    if (Globals->ageDelta < std::numeric_limits<float>::max()) {
+        const float targetAge = target.file.getFloat("Age", -1);
+        const float queryAge = target.file.getFloat("Age", -1);
+        if ((targetAge != -1) && (queryAge != -1) && (abs(targetAge - queryAge) > Globals->ageDelta))
+            return -std::numeric_limits<float>::max();
+    }
+
     return a * (_compare(target, query) - b);
 }
 
diff --git a/sdk/openbr_plugin.h b/sdk/openbr_plugin.h
index f040c99..0a0bd66 100644
--- a/sdk/openbr_plugin.h
+++ b/sdk/openbr_plugin.h
@@ -488,9 +488,15 @@ public:
     /*!
      * \brief Keys to use when matching templates to automatically determine non-match based on template metadata.
      */
-    Q_PROPERTY(QStringList demographicFilters READ get_demographicFilters WRITE set_demographicFilters)
+    Q_PROPERTY(QStringList demographicFilters READ get_demographicFilters WRITE set_demographicFilters RESET reset_demographicFilters)
     BR_PROPERTY(QStringList, demographicFilters, QStringList())
 
+    /*!
+     * \brief Allowable age difference when matching templates.
+     */
+    Q_PROPERTY(float ageDelta READ get_ageDelta WRITE set_ageDelta RESET reset_ageDelta)
+    BR_PROPERTY(float, ageDelta, std::numeric_limits<float>::max())
+
     QHash<QString,QString> abbreviations; /*!< \brief Used by br::Transform::make() to expand abbreviated algorithms into their complete definitions. */
     QHash<QString,int> classes; /*!< \brief Used by classifiers to associate text class labels with unique integers IDs. */
     QTime startTime; /*!< \brief Used to estimate timeRemaining(). */