diff --git a/src/contrib/install_libmavl.sh b/src/contrib/install_libmavl.sh
index 45c787e7..817be324 100755
--- a/src/contrib/install_libmavl.sh
+++ b/src/contrib/install_libmavl.sh
@@ -2,7 +2,7 @@
 
 VERSION="1.1.0a"
 
-wget ftp://ftp.planix.org/pub/planix/libmavl-${VERSION}.tgz
+wget -O libmavl-${VERSION}.tgz ftp://ftp.planix.org/pub/planix/libmavl-${VERSION}.tgz
 tar xzvf libmavl-${VERSION}.tgz
 cd libmavl-${VERSION}
 cp ../libmavl-LocalDefs.mak .