diff --git a/lib/services/header/index.js b/lib/services/header/index.js
index 65158832..661f9795 100644
--- a/lib/services/header/index.js
+++ b/lib/services/header/index.js
@@ -607,7 +607,7 @@ HeaderService.prototype._getHeader = function(height, hash, callback) {
   /*jshint -W018 */
   if (!hash && !(height >= 0)) {
     /*jshint +W018 */
-    log.error('invalid arguments');
+    return callback('invalid arguments');
   }
 
   if (height === self._lastHeader.height || hash === self._lastHeader.hash) {
@@ -907,7 +907,7 @@ HeaderService.prototype.getEndHash = function(tip, blockCount, callback) {
   }
 
   if (numResultsNeeded <= 0) {
-    log.error('Header Service: block service is mis-aligned ');
+    return callback('Header Service: block service is mis-aligned ');
   }
 
   var startingHeight = tip.height + 1;