diff --git a/omz-custom/tmux-sessions.sh b/omz-custom/tmux-sessions.sh
index 78f9738..d22852d 100644
--- a/omz-custom/tmux-sessions.sh
+++ b/omz-custom/tmux-sessions.sh
@@ -1,28 +1,36 @@
-function mux() {
-    project_dir=$1
-    if [[ -z "$project_dir" ]]; then
-        echo "Usage: mux <project_directory> [session_name]"
+function mx() {
+    PROJECT_DIR=$1
+    if [[ -z "$PROJECT_DIR" ]]; then
+        echo "Usage: mux <project_directory> [SESSION_NAME]"
         return 1
     fi
-    session_name=${2:-$(basename $(realpath "$project_dir"))}
-    whole_path=$(realpath "$project_dir")
-    if [[ $whole_path == "*No such file or directory*" ]]; then
-        echo "Directory does not exist: $project_dir"
+
+    ALL_PROJECTS=$(tmuxinator list | grep -v tmuxinator)
+    IS_VALID_PROJECT=$(echo $ALL_PROJECTS | grep -o "\b$PROJECT_DIR\w*" | head -1)
+    if [[ $IS_VALID_PROJECT != "" ]]; then
+        echo $IS_VALID_PROJECT
+        tmuxinator start "$IS_VALID_PROJECT"
+        return 1
+    fi
+
+    SESSION_NAME=${2:-$(basename $(realpath "$PROJECT_DIR"))}
+    WHOLE_PATH=$(realpath "$PROJECT_DIR")
+    if [[ $WHOLE_PATH == "*No such file or directory*" ]]; then
+        echo "Directory does not exist: $PROJECT_DIR"
         return 1
     fi
 
     # check if file doesn't exist yet in the tmuxinator config directory
-    tmuxinator_config=~/.config/tmuxinator/$session_name.yml
-    if [[ -f $tmuxinator_config ]]; then
-        echo "File already exists"
+    TMUXINATOR_CONFIG=~/.config/tmuxinator/$SESSION_NAME.yml
+    if [[ -f $TMUXINATOR_CONFIG ]]; then
     else
-        cp ~/.config/tmuxinator/template.yml.temp $tmuxinator_config
+        cp ~/.config/tmuxinator/template.yml.temp $TMUXINATOR_CONFIG
         # replace variables in placeholder config with real values - PROJECT_NAME, PROJECT_ROOT
-        sed -i '' "s|{{\$PROJECT_NAME}}|$session_name|g" $tmuxinator_config
-        sed -i '' "s|{{\$PROJECT_ROOT}}|$whole_path|g" "$tmuxinator_config"
+        sed -i '' "s|{{\$PROJECT_NAME}}|$SESSION_NAME|g" $TMUXINATOR_CONFIG
+        sed -i '' "s|{{\$PROJECT_ROOT}}|$WHOLE_PATH|g" "$TMUXINATOR_CONFIG"
     fi
 
-    tmuxinator start $session_name
+    tmuxinator start $SESSION_NAME
 
 }
 complete -o default mux