diff --git a/train-docs/src/main/java/org/springframework/cloud/internal/ArtifactFetcher.java b/train-docs/src/main/java/org/springframework/cloud/internal/ArtifactFetcher.java
index 6b2e2a1..039f438 100644
--- a/train-docs/src/main/java/org/springframework/cloud/internal/ArtifactFetcher.java
+++ b/train-docs/src/main/java/org/springframework/cloud/internal/ArtifactFetcher.java
@@ -108,6 +108,7 @@ class ArtifactFetcher {
 			sourcesUrls
 					.add(sourcesUrl + splitVersion[0] + "." + splitVersion[1] + ".x.zip");
 			// fallback
+			sourcesUrls.add(sourcesUrl + "main.zip");
 			sourcesUrls.add(sourcesUrl + "master.zip");
 		}
 		else {