diff --git a/lib/extensions.js b/lib/extensions.js
index e30c292..bd891e8 100644
--- a/lib/extensions.js
+++ b/lib/extensions.js
@@ -45,14 +45,14 @@ function run(args, callback) {
     processes[scriptName] = p;
 
     p.on('error', function() {
-      if (process[scriptName] === p) {
+      if (processes[scriptName] === p) {
         kill(processes[scriptName]);
         delete processes[scriptName];
       }
     });
 
     p.on('disconnect', function() {
-      if (process[scriptName] === p) {
+      if (processes[scriptName] === p) {
         kill(processes[scriptName]);
         delete processes[scriptName];
       }