diff --git a/.travis.yml b/.travis.yml
index fe45b60c..d64e07f1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -47,6 +47,7 @@ jobs:
     script: make release
     deploy:
       provider: releases
+      overwrite: true
       api_key:
         secure: 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
       file:
diff --git a/install.sh b/install.sh
index 4334f968..dc6cbd33 100755
--- a/install.sh
+++ b/install.sh
@@ -4,7 +4,7 @@ set -e
 LATEST=$(curl -s https://api.github.com/repos/SimonBaeumer/commander/releases/latest | jq -r .tag_name)
 
 if [ -z "$COMMANDER_VER" ]; then
-    $COMMANDER_VER=${COMMANDER_VER:-$LATEST}
+    COMMANDER_VER=${COMMANDER_VER:-$LATEST}
 fi
 COMMANDER_DST=${COMMANDER_DST:-/usr/local/bin}
 INSTALL_LOC="${COMMANDER_DST%/}/commander"