diff --git a/Modern/wrapperPlugins/src/test/java/org/bonej/wrapperPlugins/SurfaceAreaWrapperTest.java b/Modern/wrapperPlugins/src/test/java/org/bonej/wrapperPlugins/SurfaceAreaWrapperTest.java
index 059082cd..feb5dada 100644
--- a/Modern/wrapperPlugins/src/test/java/org/bonej/wrapperPlugins/SurfaceAreaWrapperTest.java
+++ b/Modern/wrapperPlugins/src/test/java/org/bonej/wrapperPlugins/SurfaceAreaWrapperTest.java
@@ -172,7 +172,7 @@ public void testResults() throws Exception {
 
 		// EXECUTE
 		final CommandModule module = command().run(SurfaceAreaWrapper.class,
-			true, "inputImage", imgPlus, "exportSTL", false).get();
+			true, "inputImage", imgPlus, "exportSTL", false, "stlDirectory", "./").get();
 
 		// VERIFY
 		@SuppressWarnings("unchecked")