diff --git a/src/query/frontend/opencypher/grammar/MemgraphCypher.g4 b/src/query/frontend/opencypher/grammar/MemgraphCypher.g4
index 3e4c7497e..484bb7542 100644
--- a/src/query/frontend/opencypher/grammar/MemgraphCypher.g4
+++ b/src/query/frontend/opencypher/grammar/MemgraphCypher.g4
@@ -401,7 +401,7 @@ propertyType : BOOL
 
 propertyKeyTypePair : propertyKeyName propertyType ;
 
-schemaTypeMap : '(' ( propertyKeyTypePair ( ',' propertyKeyTypePair )* )? ')' ;
+schemaTypeMap : '(' propertyKeyTypePair ( ',' propertyKeyTypePair )* ')' ;
 
 createSchema : CREATE SCHEMA ON ':' labelName schemaTypeMap ;