diff --git a/storm/Command.cpp b/storm/Command.cpp
index ba7c281..11585cf 100644
--- a/storm/Command.cpp
+++ b/storm/Command.cpp
@@ -364,7 +364,7 @@ static int32_t ProcessFile(const char* filename, PROCESSING* processing, CMDDEF*
 
     auto size = OsGetFileSize(file);
     auto buffer = reinterpret_cast<char*>(SMemAlloc(size + 1, __FILE__, __LINE__, 0));
-    int32_t bytesread;
+    uint32_t bytesread;
     OsReadFile(file, buffer, size, &bytesread);
     OsCloseFile(file);
     buffer[bytesread] = '\0';