diff --git a/modules/imgcodecs/test/test_jpegxl.cpp b/modules/imgcodecs/test/test_jpegxl.cpp
index 4f06d6c7fa..6c5aad181f 100644
--- a/modules/imgcodecs/test/test_jpegxl.cpp
+++ b/modules/imgcodecs/test/test_jpegxl.cpp
@@ -175,7 +175,7 @@ TEST(Imgcodecs_JpegXL, encode_from_uncontinued_image)
 
     vector<uint8_t> buff;
     vector<int> param;
-    bool ret;
+    bool ret = false;
     EXPECT_NO_THROW(ret = cv::imencode(".jxl", roi, buff, param));
     EXPECT_TRUE(ret);
 }