diff --git a/Source/INTUGroupedArray/INTUGroupedArray.m b/Source/INTUGroupedArray/INTUGroupedArray.m
index 11e8f8b..186a17b 100755
--- a/Source/INTUGroupedArray/INTUGroupedArray.m
+++ b/Source/INTUGroupedArray/INTUGroupedArray.m
@@ -1124,8 +1124,8 @@ - (void)enumerateSectionsWithOptions:(NSEnumerationOptions)options usingBlock:(v
         return;
     }
     
-    BOOL concurrent = (options & NSEnumerationConcurrent);
-    BOOL reverse = (options & NSEnumerationReverse);
+    BOOL concurrent = (options & NSEnumerationConcurrent) == 0 ? NO : YES;
+    BOOL reverse = (options & NSEnumerationReverse) == 0 ? NO : YES;
     
     NSOperationQueue *concurrentQueue = nil;
     if (concurrent) {
@@ -1187,8 +1187,8 @@ - (void)enumerateObjectsWithOptions:(NSEnumerationOptions)options usingBlock:(vo
         return;
     }
     
-    BOOL concurrent = (options & NSEnumerationConcurrent);
-    BOOL reverse = (options & NSEnumerationReverse);
+    BOOL concurrent = (options & NSEnumerationConcurrent) == 0 ? NO : YES;
+    BOOL reverse = (options & NSEnumerationReverse) == 0 ? NO : YES;
     
     NSOperationQueue *concurrentQueue = nil;
     if (concurrent) {
@@ -1255,8 +1255,8 @@ - (void)enumerateObjectsInSectionAtIndex:(NSUInteger)sectionIndex withOptions:(N
         return;
     }
     
-    BOOL concurrent = (options & NSEnumerationConcurrent);
-    BOOL reverse = (options & NSEnumerationReverse);
+    BOOL concurrent = (options & NSEnumerationConcurrent) == 0 ? NO : YES;
+    BOOL reverse = (options & NSEnumerationReverse) == 0 ? NO : YES;
     
     NSOperationQueue *concurrentQueue = nil;
     if (concurrent) {