diff --git a/bullet-train.zsh-theme b/bullet-train.zsh-theme
index 5626859..31252d2 100644
--- a/bullet-train.zsh-theme
+++ b/bullet-train.zsh-theme
@@ -588,17 +588,20 @@ prompt_virtualenv() {
 
 # NVM: Node version manager
 prompt_nvm() {
-  local nvm_prompt
-  if type nvm >/dev/null 2>&1; then
-    nvm_prompt=$(nvm current 2>/dev/null)
-    [[ "${nvm_prompt}x" == "x" || "${nvm_prompt}" == "system" ]] && return
-  elif type node >/dev/null 2>&1; then
-    nvm_prompt="$(node --version)"
-  else
-    return
+  setopt extended_glob
+  if [[ (-n *.js(#qN)) || (-n *.json(#qN)) ]]; then
+    local nvm_prompt
+    if type nvm >/dev/null 2>&1; then
+      nvm_prompt=$(nvm current 2>/dev/null)
+      [[ "${nvm_prompt}x" == "x" ]] && return
+    elif type node >/dev/null 2>&1; then
+      nvm_prompt="$(node --version)"
+    else
+      return
+    fi
+    nvm_prompt=${nvm_prompt}
+    prompt_segment $BULLETTRAIN_NVM_BG $BULLETTRAIN_NVM_FG $BULLETTRAIN_NVM_PREFIX$nvm_prompt
   fi
-  nvm_prompt=${nvm_prompt}
-  prompt_segment $BULLETTRAIN_NVM_BG $BULLETTRAIN_NVM_FG $BULLETTRAIN_NVM_PREFIX$nvm_prompt
 }
 
 #AWS Profile