diff --git a/integration/copy_test.go b/integration/copy_test.go
index ee530b04..8362201c 100644
--- a/integration/copy_test.go
+++ b/integration/copy_test.go
@@ -567,7 +567,7 @@ func matchLayerBlobBinaryType(c *check.C, ociImageDirPath string, contentType st
 		c.Assert(err, check.IsNil)
 
 		if layerContentType == contentType {
-			foundCount = foundCount + 1
+			foundCount++
 		}
 	}