diff --git a/ext/load_ext_data/main.php b/ext/load_ext_data/main.php
index f443dd44..e0b216de 100644
--- a/ext/load_ext_data/main.php
+++ b/ext/load_ext_data/main.php
@@ -6,12 +6,18 @@ class LoadExtData extends Extension {
 
 			$data_href = get_base_href();
 
-			foreach(glob("ext/*/style.css") as $css_file) {
-				$page->add_header("<link rel='stylesheet' href='$data_href/$css_file' type='text/css'>");
+			$css_files = glob("ext/*/style.css");
+			if($css_files) {
+				foreach($css_files as $css_file) {
+					$page->add_header("<link rel='stylesheet' href='$data_href/$css_file' type='text/css'>");
+				}
 			}
 
-			foreach(glob("ext/*/script.js") as $js_file) {
-				$page->add_header("<script src='$data_href/$js_file' type='text/javascript'></script>");
+			$js_files = glob("ext/*/script.js");
+			if($js_files) {
+				foreach($js_files as $js_file) {
+					$page->add_header("<script src='$data_href/$js_file' type='text/javascript'></script>");
+				}
 			}
 		}
 	}