diff --git a/windows/mavproxy.spec b/windows/mavproxy.spec
index 7f0398913d..67ae098699 100755
--- a/windows/mavproxy.spec
+++ b/windows/mavproxy.spec
@@ -93,7 +93,7 @@ MAVPicViewer_exe = EXE(MAVPicViewer_pyz,
             strip=None,
             upx=True,
             console=True )
-MAVExp_coll = COLLECT(MAVPicViewer_exe,
+MAVPicViewer_coll = COLLECT(MAVPicViewer_exe,
                MAVPicViewerAny.binaries,
                MAVPicViewerAny.zipfiles,
                MAVPicViewerAny.datas,