diff --git a/monujo/lib/common b/monujo/lib/common
index 8c6156d..7dbd645 100644
--- a/monujo/lib/common
+++ b/monujo/lib/common
@@ -8,19 +8,23 @@ CONFIGFILE="$LOCATION/config.json"
 
 
 monujo:code_init() {
-    mkdir -p "$LOCATION"
-    if dir_is_empty "$LOCATION"; then
-        cd "$LOCATION"
-        info "First install, downloading '$SOURCE_URL'."
-        wget -q "$SOURCE_URL" -O file.tar.bz2 || {
-            err "Couldn't download '$SOURCE_URL'."
-            rm file.tar.bz2
-            return 1
-        }
-        tar xjf file.tar.bz2 &&
-        rm file.tar.bz2 &&
-        chown root:root "$LOCATION" -R
+    if [ -e "$LOCATION/.version" ] && \
+           [ "$(cat "$LOCATION/.version")" == "$VERSION" ]; then
+        return 0
     fi
+    [ -d "$LOCATION" ] && rm -rf "$LOCATION"
+    mkdir -p "$LOCATION"
+    cd "$LOCATION"
+    info "Downloading '$SOURCE_URL'."
+    wget -q "$SOURCE_URL" -O file.tar.bz2 || {
+        err "Couldn't download '$SOURCE_URL'."
+        rm file.tar.bz2
+        return 1
+    }
+    tar xjf file.tar.bz2 &&
+    rm file.tar.bz2 &&
+    chown root:root "$LOCATION" -R &&
+    echo "$VERSION" > "$LOCATION/.version"
 }
 
 export MONUJO_OPTIONS=(