diff --git a/lib/guard/jasmine/phantomjs/guard-jasmine.coffee b/lib/guard/jasmine/phantomjs/guard-jasmine.coffee
index 1c83fe9..203a4f7 100644
--- a/lib/guard/jasmine/phantomjs/guard-jasmine.coffee
+++ b/lib/guard/jasmine/phantomjs/guard-jasmine.coffee
@@ -24,7 +24,7 @@ errors = {}
 # Catch JavaScript errors
 #
 page.onError = (msg, trace) ->
-  if currentSpecId
+  if currentSpecId > -1
     errors[currentSpecId] ||= []
     errors[currentSpecId].push({ msg: msg, trace: trace })
 
@@ -41,7 +41,7 @@ page.onConsoleMessage = (msg, line, source) ->
     currentSpecId = Number(RegExp.$1)
     logs[currentSpecId] = []
 
-  else
+  else if currentSpecId > -1
     logs[currentSpecId].push(msg)
 
 # Initialize the page before the JavaScript is run.
diff --git a/lib/guard/jasmine/phantomjs/guard-jasmine.js b/lib/guard/jasmine/phantomjs/guard-jasmine.js
index eefe6d8..c66ec9a 100644
--- a/lib/guard/jasmine/phantomjs/guard-jasmine.js
+++ b/lib/guard/jasmine/phantomjs/guard-jasmine.js
@@ -22,7 +22,7 @@
   errors = {};
 
   page.onError = function(msg, trace) {
-    if (currentSpecId) {
+    if (currentSpecId > -1) {
       errors[currentSpecId] || (errors[currentSpecId] = []);
       return errors[currentSpecId].push({
         msg: msg,
@@ -44,7 +44,7 @@
     } else if (/^SPEC_START: (\d+)$/.test(msg)) {
       currentSpecId = Number(RegExp.$1);
       return logs[currentSpecId] = [];
-    } else {
+    } else if (currentSpecId > -1) {
       return logs[currentSpecId].push(msg);
     }
   };