diff --git a/toolkit/xre/nsAppRunner.cpp b/toolkit/xre/nsAppRunner.cpp
index 75153757f952..647fc8be3cf7 100644
--- a/toolkit/xre/nsAppRunner.cpp
+++ b/toolkit/xre/nsAppRunner.cpp
@@ -780,7 +780,7 @@ nsXULAppInfo::EnsureContentProcess()
     return NS_ERROR_NOT_AVAILABLE;
   return NS_OK;
 #else
-  return NS_ERROR_NOT_AVIALABLE;
+  return NS_ERROR_NOT_AVAILABLE;
 #endif
 }