diff --git a/lib/modules/database/reference.js b/lib/modules/database/reference.js
index 9c908585..d2268d45 100644
--- a/lib/modules/database/reference.js
+++ b/lib/modules/database/reference.js
@@ -488,16 +488,16 @@ export default class Reference extends ReferenceBase {
         return fnResolve(result);
       }, (possibleErr) => {
         this._promise = null;
-        
+
         if (isFunction(fnReject)) {
           return fnReject(possibleErr);
         }
-        
+
         throw possibleErr;
       });
     }
 
-    return throw new Error("Cannot read property 'then' of undefined.");
+    throw new Error("Cannot read property 'then' of undefined.");
   }
 
   /**
@@ -512,7 +512,7 @@ export default class Reference extends ReferenceBase {
       });
     }
 
-    return throw new Error("Cannot read property 'catch' of undefined.");
+    throw new Error("Cannot read property 'catch' of undefined.");
   }
 
   /**