diff --git a/classes/extravar/Extravar.class.php b/classes/extravar/Extravar.class.php
index b4188976a..6d6e01c93 100644
--- a/classes/extravar/Extravar.class.php
+++ b/classes/extravar/Extravar.class.php
@@ -29,6 +29,7 @@
          * @param module_srl, idx, name, type, default, desc, is_required, search, value
          **/
         function setExtraVarKeys($extra_keys) {
+            if(!is_array($extra_keys) || !count($extra_keys)) return;
             foreach($extra_keys as $key => $val) {
                 $obj = null;
                 $obj = new ExtraItem($val->module_srl, $val->idx, $val->name, $val->type, $val->default, $val->desc, $val->is_required, $val->search, $val->value,  $val->eid); 
diff --git a/modules/document/document.model.php b/modules/document/document.model.php
index 10666c33c..a8ecdb5ef 100644
--- a/modules/document/document.model.php
+++ b/modules/document/document.model.php
@@ -67,13 +67,15 @@
             $document_lang_code = $oDocument->get('lang_code');
 
             // 확장변수 처리
-            foreach($extra_keys as $idx => $key) {
-                $val = $vars[$idx];
-                if($val[$user_lang_code]) $v = $val[$user_lang_code];
-                else if($val[$document_lang_code]) $v = $val[$document_lang_code];
-                else if($val[0]) $v = $val[0];
-                else $v = null;
-                $extra_keys[$idx]->value = $v;
+            if(count($extra_keys)) {
+		    foreach($extra_keys as $idx => $key) {
+			$val = $vars[$idx];
+			if($val[$user_lang_code]) $v = $val[$user_lang_code];
+			else if($val[$document_lang_code]) $v = $val[$document_lang_code];
+			else if($val[0]) $v = $val[0];
+			else $v = null;
+			$extra_keys[$idx]->value = $v;
+		    }
             }
 
             $extra_vars = new ExtraVar($module_srl);