diff --git a/lib/waterline/error/WLError.js b/lib/waterline/error/WLError.js
index fb9993d7a..e571b8ed3 100644
--- a/lib/waterline/error/WLError.js
+++ b/lib/waterline/error/WLError.js
@@ -26,7 +26,7 @@ function WLError(properties) {
   }
 
   // Doctor up a modified version of the stack trace called `rawStack`:
-  this.rawStack = (this._e.stack.replace(/^Error(\r|\n)*(\r|\n)*/, ''));
+  this.rawStack = (this._e && this._e.stask && this._e.stack.replace(/^Error(\r|\n)*(\r|\n)*/, '') || '');
 
   // Customize `details`:
   // Try to dress up the wrapped "original" error as much as possible.