diff --git a/SeedDMS_Lucene/Lucene/Search.php b/SeedDMS_Lucene/Lucene/Search.php
index c25ba678a..5ca533d93 100644
--- a/SeedDMS_Lucene/Lucene/Search.php
+++ b/SeedDMS_Lucene/Lucene/Search.php
@@ -93,7 +93,7 @@ class SeedDMS_Lucene_Search {
 			if($querystr)
 				$querystr .= ' && ';
 			$querystr .= '(category:"';
-			$querystr .= implode('" || category:"', $fields['category']);
+			$querystr .= implode('" && category:"', $fields['category']);
 			$querystr .= '")';
 		}
 		if(!empty($fields['status'])) {
diff --git a/SeedDMS_SQLiteFTS/SQLiteFTS/Search.php b/SeedDMS_SQLiteFTS/SQLiteFTS/Search.php
index b013025ce..a227b24e1 100644
--- a/SeedDMS_SQLiteFTS/SQLiteFTS/Search.php
+++ b/SeedDMS_SQLiteFTS/SQLiteFTS/Search.php
@@ -99,9 +99,9 @@ class SeedDMS_SQliteFTS_Search {
 		if(!empty($fields['category'])) {
 			if($querystr)
 				$querystr .= ' AND ';
-			$querystr .= '(category:';
-			$querystr .= implode(' OR category:', $fields['category']);
-			$querystr .= ')';
+			$querystr .= '(category:"';
+			$querystr .= implode('" AND category:"', $fields['category']);
+			$querystr .= '")';
 		}
 		if(!empty($fields['mimetype'])) {
 			if($querystr)