diff --git a/src/main/java/com/dailyon/productservice/product/controller/ProductController.java b/src/main/java/com/dailyon/productservice/product/controller/ProductController.java
index cab1bcf..ad564f3 100644
--- a/src/main/java/com/dailyon/productservice/product/controller/ProductController.java
+++ b/src/main/java/com/dailyon/productservice/product/controller/ProductController.java
@@ -10,6 +10,9 @@
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 
+import javax.validation.Valid;
+import javax.validation.constraints.NotBlank;
+
 @RestController
 @RequestMapping("/products")
 @RequiredArgsConstructor
@@ -48,7 +51,7 @@ ResponseEntity<ReadProductSliceResponse> readProductSlice(
     }
 
     @GetMapping("/search")
-    ResponseEntity<ReadProductSearchResponse> searchProducts(@RequestParam String query) {
+    ResponseEntity<ReadProductSearchResponse> searchProducts(@Valid @NotBlank @RequestParam String query) {
         return ResponseEntity.status(HttpStatus.OK).body(productFacade.searchProducts(query));
     }