diff --git a/gui/base/src/test/java/it/angrybear/yagl/guis/GUIImplTest.java b/gui/base/src/test/java/it/angrybear/yagl/guis/GUIImplTest.java
index fb0a166d..65252822 100644
--- a/gui/base/src/test/java/it/angrybear/yagl/guis/GUIImplTest.java
+++ b/gui/base/src/test/java/it/angrybear/yagl/guis/GUIImplTest.java
@@ -25,7 +25,7 @@
 class GUIImplTest {
 
     @ParameterizedTest
-    @ValueSource(ints = {-1, 180})
+    @ValueSource(ints = {-1, 180, 17})
     void testInvalidSize(int size) {
         assertThrowsExactly(IllegalArgumentException.class, () -> GUI.newGUI(size));
     }