diff --git a/exercises/practice/difference-of-squares/difference-of-squares.sql b/exercises/practice/difference-of-squares/difference-of-squares.sql
index 09eb413f..62cd0b7c 100644
--- a/exercises/practice/difference-of-squares/difference-of-squares.sql
+++ b/exercises/practice/difference-of-squares/difference-of-squares.sql
@@ -1,2 +1,2 @@
--- Schema: CREATE TABLE "difference-of-squares" ("number" INT", property" TEXT, "result" INT);
+-- Schema: CREATE TABLE "difference-of-squares" ("number" INT, "property" TEXT, "result" INT);
 -- Task: update the difference-of-squares table and set the result based on the number and property fields.