diff --git a/cocos/platform/CCPosixFileStream.cpp b/cocos/platform/CCPosixFileStream.cpp
index 2b48b89b09..40ded86893 100644
--- a/cocos/platform/CCPosixFileStream.cpp
+++ b/cocos/platform/CCPosixFileStream.cpp
@@ -151,7 +151,8 @@ int PosixFileStream::close()
 
 int PosixFileStream::seek(long offset, int origin)
 {
-    return static_cast<int>(_iof->seek(_handle, offset, origin));
+    const auto result = _iof->seek(_handle, offset, origin); // this returns -1 for error, and resulting offset on success
+    return result < 0 ? -1 : 0; // return 0 for success
 }
 
 int PosixFileStream::read(void* buf, unsigned int size)