diff --git a/modules/dnn/test/npy_blob.cpp b/modules/dnn/test/npy_blob.cpp
index 1dcfbd9cc0..fead96d64f 100644
--- a/modules/dnn/test/npy_blob.cpp
+++ b/modules/dnn/test/npy_blob.cpp
@@ -72,7 +72,7 @@ Mat blobFromNPY(const std::string& path)
     ifs.ignore(1);  // Skip major version byte.
     ifs.ignore(1);  // Skip minor version byte.
 
-    uint16_t headerSize;
+    unsigned short headerSize;
     ifs.read((char*)&headerSize, sizeof(headerSize));
 
     std::string header(headerSize, '*');