diff --git a/lib/apiaction.php b/lib/apiaction.php
index 8420bfb51e..24f42e4a41 100644
--- a/lib/apiaction.php
+++ b/lib/apiaction.php
@@ -771,9 +771,15 @@ class ApiAction extends Action
 
     function showJsonObjects($objects)
     {
-        print(json_encode($objects));
+        $json_objects = json_encode($objects);
+        if($json_objects === false) {
+            $this->clientError(_('JSON encoding failed. Error: ').json_last_error_msg());     		   
+        } else {
+        	print $json_objects;
+        }
     }
 
+
     function showSingleXmlStatus($notice)
     {
         $this->initDocument('xml');
@@ -1558,4 +1564,4 @@ class ApiAction extends Action
 
         return $uri;
     }
-}
+}
\ No newline at end of file