diff --git a/exercises/03.primitive-types/02.solution.comparisons/index.ts b/exercises/03.primitive-types/02.solution.comparisons/index.ts
index 95e73f8..a001bfb 100644
--- a/exercises/03.primitive-types/02.solution.comparisons/index.ts
+++ b/exercises/03.primitive-types/02.solution.comparisons/index.ts
@@ -13,8 +13,8 @@ const strictEqual = price === quantity
 console.log('Loose equality (==):', looseEqual)
 console.log('Strict equality (===):', strictEqual)
 
-const a = 10
-const b = 20
+const a: number = 10
+const b: number = 20
 
 const notEqualLoose = a != b