diff --git a/qutebrowser/misc/guiprocess.py b/qutebrowser/misc/guiprocess.py
index e8d224f2e..f1917b523 100644
--- a/qutebrowser/misc/guiprocess.py
+++ b/qutebrowser/misc/guiprocess.py
@@ -155,7 +155,7 @@ class GUIProcess(QObject):
             self._started = True
         else:
             message.error("Error while spawning {}: {}.".format(
-                self._what, self._proc.error()))
+                self._what, ERROR_STRINGS[self._proc.error()]))
 
     def exit_status(self):
         return self._proc.exitStatus()