diff --git a/SQL/Select/revising_the_select_query_2.sql b/SQL/Select/revising_the_select_query_2.sql
index 2b5a1d3..2fa1696 100644
--- a/SQL/Select/revising_the_select_query_2.sql
+++ b/SQL/Select/revising_the_select_query_2.sql
@@ -16,4 +16,4 @@ Query the names of all American cities in CITY with populations larger than 120,
 
 SELECT NAME
 FROM CITY
-WHERE COUNTRYCODE = "USA" AND POPULATION > 120000;
+WHERE COUNTRYCODE = 'USA' AND POPULATION > 120000;