diff --git a/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexRangeSearchCursor.java b/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexRangeSearchCursor.java
index 85743ca..995b854 100644
--- a/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexRangeSearchCursor.java
+++ b/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexRangeSearchCursor.java
@@ -81,8 +81,10 @@
         if (invListCursor.hasNext()) {
             return true;
         }
-        invListCursor.unpinPages();
-        unpinNeeded = false;
+        if (unpinNeeded) {
+            invListCursor.unpinPages();
+            unpinNeeded = false;
+        }
         if (!btreeCursor.hasNext()) {
             return false;
         }