diff --git a/markwon-core/src/test/java/ru/noties/markwon/core/CorePluginTest.java b/markwon-core/src/test/java/ru/noties/markwon/core/CorePluginTest.java
index 681e1f0a..1cbf908b 100644
--- a/markwon-core/src/test/java/ru/noties/markwon/core/CorePluginTest.java
+++ b/markwon-core/src/test/java/ru/noties/markwon/core/CorePluginTest.java
@@ -156,6 +156,12 @@ public class CorePluginTest {
                 return this;
             }
 
+            @Nullable
+            @Override
+            public <N extends Node> SpanFactory getFactory(@NonNull Class<N> node) {
+                throw new RuntimeException();
+            }
+
             @NonNull
             @Override
             public MarkwonSpansFactory build() {