diff --git a/Libraries/LibWeb/ResourceLoader.cpp b/Libraries/LibWeb/ResourceLoader.cpp
index 47fa1741ee..c6b1aac24c 100644
--- a/Libraries/LibWeb/ResourceLoader.cpp
+++ b/Libraries/LibWeb/ResourceLoader.cpp
@@ -57,7 +57,8 @@ void ResourceLoader::load_sync(const URL& url, Function<void(const ByteBuffer&)>
             loop.quit(0);
         },
         [&](auto& string) {
-            error_callback(string);
+            if (error_callback)
+                error_callback(string);
             loop.quit(0);
         });