diff --git a/source/src/oggstream.cpp b/source/src/oggstream.cpp
index 3cd03ae0..aa1e8807 100644
--- a/source/src/oggstream.cpp
+++ b/source/src/oggstream.cpp
@@ -9,7 +9,7 @@
 
 static int oggseek(FILE *f, ogg_int64_t off, int whence)
 {
-    return f ? fseek(f, off, whence) : -1;
+    return f ? fseek(f, (long)off, whence) : -1;
 }
 
 ov_callbacks oggcallbacks =