diff --git a/docker/debian-7-64bit/win64.sh b/docker/debian-7-64bit/win64.sh
index dba1c03..2531e3b 100755
--- a/docker/debian-7-64bit/win64.sh
+++ b/docker/debian-7-64bit/win64.sh
@@ -1,3 +1,3 @@
 #!/bin/bash
 
-PLATFORM=win ARCH=32 $(cd `dirname "$0"`; pwd)/run.sh "$@"
+PLATFORM=win ARCH=64 $(cd `dirname "$0"`; pwd)/run.sh "$@"