diff --git a/test/issue2448/dub.json b/test/issue2448/dub.json
new file mode 100644
index 0000000..76c561c
--- /dev/null
+++ b/test/issue2448/dub.json
@@ -0,0 +1,5 @@
+{
+	"name": "use-source-files",
+	"description": "Example of using source files.",
+	"sourceFiles": ["ext/*.d"]
+}
diff --git a/test/issue2448/ext/kekw.d b/test/issue2448/ext/kekw.d
new file mode 100644
index 0000000..f1585d3
--- /dev/null
+++ b/test/issue2448/ext/kekw.d
@@ -0,0 +1 @@
+extern(C) string funkekw () { return "KEKW";}
diff --git a/test/issue2448/source/app.d b/test/issue2448/source/app.d
new file mode 100644
index 0000000..b327028
--- /dev/null
+++ b/test/issue2448/source/app.d
@@ -0,0 +1,8 @@
+import std.stdio;
+
+extern(C) string funkekw ();
+
+void main()
+{
+	writefln("Juan: %s", funkekw());
+}