diff --git a/lit.cfg b/lit.cfg
index f764e17..517bd78 100644
--- a/lit.cfg
+++ b/lit.cfg
@@ -53,7 +53,7 @@ config.test_format = lit.formats.ShTest(execute_external = False)
 # suffixes: A list of file extensions to treat as test files.
 #
 # We override this in specific subdirectories to change what we test.
-config.suffixes = [".txt", ".py", ".md"]
+config.suffixes = [".txt", ".py", ".md", ".test"]
 
 # excludes: A list of directories to exclude from the testsuite. The 'Inputs'
 # subdirectories contain auxiliary inputs for various tests in their parent
diff --git a/test-static-stdlib/main.swift b/test-static-stdlib/main.swift
new file mode 100644
index 0000000..502ea4b
--- /dev/null
+++ b/test-static-stdlib/main.swift
@@ -0,0 +1,6 @@
+
+import Foundation
+
+let u = URL(fileURLWithPath: "file:///foo")
+
+print("foo bar baz: \(u)")
diff --git a/test-static-stdlib/test-static-stdlib.test b/test-static-stdlib/test-static-stdlib.test
new file mode 100644
index 0000000..d66d65c
--- /dev/null
+++ b/test-static-stdlib/test-static-stdlib.test
@@ -0,0 +1,7 @@
+
+RUN: rm -rf %t
+RUN: mkdir -p %t
+RUN: %{swiftc} -static-stdlib %S/main.swift -o %t/main
+RUN: %t/main | %{FileCheck} %s
+
+CHECK: foo bar baz: file:/foo