1 files changed, 2 insertions, 2 deletions
diff --git a/shell/inc/internal/stream_helper.hxx b/shell/inc/internal/stream_helper.hxx
index 77af98846630..a7a48ab37982 100644
--- a/shell/inc/internal/stream_helper.hxx
+++ b/shell/inc/internal/stream_helper.hxx
@@ -31,7 +31,7 @@ public:
     ~BufferStream();
     unsigned long sread (unsigned char *vuf, unsigned long size);
     long stell ();
-    long sseek (unsigned long offset, int origin);
+    long sseek (long offset, int origin);
 private:
     IStream *stream;
 };
@@ -43,7 +43,7 @@ public:
     ~FileStream();
     unsigned long sread (unsigned char *buf, unsigned long size);
     long stell ();
-    long sseek (unsigned long offset, int origin);
+    long sseek (long offset, int origin);
 private:
     FILE *file;
 };