diff --git a/java/resources.go b/java/resources.go
index 9f5e5e0..85ebd52 100644
--- a/java/resources.go
+++ b/java/resources.go
@@ -47,7 +47,8 @@
 	var excludes []string
 
 	for _, exclude := range excludeDirs {
-		excludes = append(excludes, android.PathForModuleSrc(ctx, exclude, "**/*").String())
+		excludes = append(excludes,
+			filepath.Join(android.PathForModuleSrc(ctx, exclude).String(), "**/*"))
 	}
 
 	excludes = append(excludes, resourceExcludes...)