diff --git a/tests/install_sodium.sh b/tests/install_sodium.sh
index 94313f5d5a114dd2f91f403207abecf74de78b21..907bff8cf56f499083a92ceece844e00749cc164 100755
--- a/tests/install_sodium.sh
+++ b/tests/install_sodium.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 cd $HOME
 wget http://download.dnscrypt.org/libsodium/releases/libsodium-0.2.tar.gz
-tar xvf libsodium-0.2
+tar xvf libsodium-0.2.tar.gz
 cd libsodium-0.2
 ./configure --disable-debug --disable-dependency-tracking
 make