diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushAggFuncIntoStandaloneAggregateRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushAggFuncIntoStandaloneAggregateRule.java
index 58aa5c9..48d3f27 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushAggFuncIntoStandaloneAggregateRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushAggFuncIntoStandaloneAggregateRule.java
@@ -20,8 +20,6 @@
 import java.util.LinkedList;
 import java.util.List;
 
-import javax.naming.ContextNotEmptyException;
-
 import org.apache.commons.lang3.mutable.Mutable;
 import org.apache.commons.lang3.mutable.MutableObject;
 
@@ -93,10 +91,8 @@
         LogicalVariable aggVar = aggOp.getVariables().get(0);
         List<LogicalVariable> used = new LinkedList<LogicalVariable>();
         VariableUtilities.getUsedVariables(assignOp, used);
-        for (LogicalVariable usedAggVar : used) {
-            if (usedAggVar != aggVar) {
-                return false;
-            }
+        if (!used.contains(aggVar)) {
+            return false;
         }
 
         List<Mutable<ILogicalExpression>> srcAssignExprRefs = new LinkedList<Mutable<ILogicalExpression>>();
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/agg_null_rec_1/agg_null_rec_1.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/agg_null_rec_1/agg_null_rec_1.1.ddl.aql
new file mode 100644
index 0000000..da8a4a2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/agg_null_rec_1/agg_null_rec_1.1.ddl.aql
@@ -0,0 +1,16 @@
+/*
+* Description  : Run aggregates over records, with only null items for the aggregating fields.
+* Expected Res : Success
+* Date         : Jun 2nd 2013
+*/
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type TestType as open {
+  id: int32,
+  val: double
+}
+
+create dataset Test(TestType) primary key id;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/agg_null_rec_1/agg_null_rec_1.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/agg_null_rec_1/agg_null_rec_1.2.update.aql
new file mode 100644
index 0000000..4e0db2b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/agg_null_rec_1/agg_null_rec_1.2.update.aql
@@ -0,0 +1,11 @@
+/*
+* Description  : Run aggregates over records, with only null items for the aggregating fields.
+* Expected Res : Success
+* Date         : Jun 2nd 2013
+*/
+
+use dataverse test;
+
+insert into dataset Test ({"id": 0, "val": 4.32, "valplus": 473847});
+insert into dataset Test ({"id": 1, "val": 5.32});
+insert into dataset Test ({"id": 2, "val": 6.32, "valplus": 38473827484738239});
diff --git a/asterix-app/src/test/resources/runtimets/queries/aggregate/agg_null_rec_1/agg_null_rec_1.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/aggregate/agg_null_rec_1/agg_null_rec_1.3.query.aql
new file mode 100644
index 0000000..ab0560a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/aggregate/agg_null_rec_1/agg_null_rec_1.3.query.aql
@@ -0,0 +1,12 @@
+/*
+* Description  : Run aggregates over records, with only null items for the aggregating fields.
+* Expected Res : Success
+* Date         : Jun 2nd 2013
+*/
+
+use dataverse test;
+
+let $l := for $t in dataset Test return $t
+return { "count": count($l), "average": avg(for $i in $l return $i.val), "sum":
+sum(for $i in $l return $i.val), "min": min(for $i in $l return $i.valplus),
+"max": max(for $i in $l return $i.valplus) }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/aggregate/agg_null_rec_1/agg_null_rec.1.adm b/asterix-app/src/test/resources/runtimets/results/aggregate/agg_null_rec_1/agg_null_rec.1.adm
new file mode 100644
index 0000000..76d1409
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/aggregate/agg_null_rec_1/agg_null_rec.1.adm
@@ -0,0 +1 @@
+{ "count": 3i64, "average": 5.32d, "sum": 15.96d, "min": null, "max": null }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/testsuite.xml b/asterix-app/src/test/resources/runtimets/testsuite.xml
index d011f2c..d6c6733 100644
--- a/asterix-app/src/test/resources/runtimets/testsuite.xml
+++ b/asterix-app/src/test/resources/runtimets/testsuite.xml
@@ -11,6 +11,11 @@
       </compilation-unit>
     </test-case>
     <test-case FilePath="aggregate">
+      <compilation-unit name="agg_null_rec_1">
+        <output-dir compare="Text">agg_null_rec_1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="aggregate">
       <compilation-unit name="agg_number_rec">
         <output-dir compare="Text">agg_number_rec</output-dir>
       </compilation-unit>