diff --git a/.travis/linux-build.sh b/.travis/linux-build.sh
index 6981d1d475b..60d8931f36f 100755
--- a/.travis/linux-build.sh
+++ b/.travis/linux-build.sh
@@ -34,7 +34,9 @@ function install_kernel()
 
     url="${base_url}/linux-${version}.tar.xz"
     # Download kernel sources. Try direct link on CDN failure.
-    wget ${url} || wget ${url} || wget ${url/cdn/www}
+    wget ${url} ||
+    (rm -f linux-${version}.tar.xz && wget ${url}) ||
+    (rm -f linux-${version}.tar.xz && wget ${url/cdn/www})
 
     tar xvf linux-${version}.tar.xz > /dev/null
     pushd linux-${version}