diff --git a/src/include/access/gin_private.h b/src/include/access/gin_private.h
index 1d60b9a4902..dbc95f4681a 100644
--- a/src/include/access/gin_private.h
+++ b/src/include/access/gin_private.h
@@ -106,17 +106,17 @@ typedef struct GinMetaPageData
  */
 #define GinPageGetOpaque(page) ( (GinPageOpaque) PageGetSpecialPointer(page) )
 
-#define GinPageIsLeaf(page)    ( GinPageGetOpaque(page)->flags & GIN_LEAF )
+#define GinPageIsLeaf(page)    ( (GinPageGetOpaque(page)->flags & GIN_LEAF) != 0 )
 #define GinPageSetLeaf(page)   ( GinPageGetOpaque(page)->flags |= GIN_LEAF )
 #define GinPageSetNonLeaf(page)    ( GinPageGetOpaque(page)->flags &= ~GIN_LEAF )
-#define GinPageIsData(page)    ( GinPageGetOpaque(page)->flags & GIN_DATA )
+#define GinPageIsData(page)    ( (GinPageGetOpaque(page)->flags & GIN_DATA) != 0 )
 #define GinPageSetData(page)   ( GinPageGetOpaque(page)->flags |= GIN_DATA )
-#define GinPageIsList(page)    ( GinPageGetOpaque(page)->flags & GIN_LIST )
+#define GinPageIsList(page)    ( (GinPageGetOpaque(page)->flags & GIN_LIST) != 0 )
 #define GinPageSetList(page)   ( GinPageGetOpaque(page)->flags |= GIN_LIST )
-#define GinPageHasFullRow(page)    ( GinPageGetOpaque(page)->flags & GIN_LIST_FULLROW )
+#define GinPageHasFullRow(page)    ( (GinPageGetOpaque(page)->flags & GIN_LIST_FULLROW) != 0 )
 #define GinPageSetFullRow(page)   ( GinPageGetOpaque(page)->flags |= GIN_LIST_FULLROW )
 
-#define GinPageIsDeleted(page) ( GinPageGetOpaque(page)->flags & GIN_DELETED)
+#define GinPageIsDeleted(page) ( (GinPageGetOpaque(page)->flags & GIN_DELETED) != 0 )
 #define GinPageSetDeleted(page)    ( GinPageGetOpaque(page)->flags |= GIN_DELETED)
 #define GinPageSetNonDeleted(page) ( GinPageGetOpaque(page)->flags &= ~GIN_DELETED)