diff --git a/travis/commands.sh b/travis/commands.sh
index 080ddf7..e90d52f 100755
--- a/travis/commands.sh
+++ b/travis/commands.sh
@@ -23,11 +23,11 @@ setup-composer() {
 install-from-github() {
 
 	local GITHUB_SRC=${1}_GITHUB_SRC
-	local GITHUB_TREE=${1}_GITHUB_TREE
+	local GIT_TREE=${1}_GIT_TREE
 	local DIR=${1}_DIR
 
     mkdir -p "${!DIR}"
-    curl -L "https://github.com/${!GITHUB_SRC}/archive/${!GITHUB_TREE}.tar.gz" \
+    curl -L "https://github.com/${!GITHUB_SRC}/archive/${!GIT_TREE}.tar.gz" \
         | tar xvz --strip-components=1 -C "${!DIR}"
 }