diff --git a/wadsrc/static/compatibility.txt b/wadsrc/static/compatibility.txt
index 099456405..d796db843 100644
--- a/wadsrc/static/compatibility.txt
+++ b/wadsrc/static/compatibility.txt
@@ -51,6 +51,11 @@ A80E7EE40E0D0C76A6FBD242BE29FE27 // map15
 	resetplayerspeed
 }
 
+5C594C67CF7721005DE71429F9811370 // Eternal Doom map03
+{
+	stairs
+}
+
 6DA6FCBA8089161BDEC6A1D3F6C8D60F // Eternal Doom MAP25
 {
 	stairs