diff --git a/src/test-expr-1.nix b/src/test-expr-1.nix
new file mode 100644
index 0000000000..a94ee73828
--- /dev/null
+++ b/src/test-expr-1.nix
@@ -0,0 +1 @@
+Str("Hello World")
diff --git a/src/test.cc b/src/test.cc
index 39d4b333fa..334e409de3 100644
--- a/src/test.cc
+++ b/src/test.cc
@@ -85,7 +85,7 @@ void runTests()
 
     evalTest(e2);
 
-    Hash h3 = addValue("./test-expr.nix");
+    Hash h3 = addValue("./test-expr-1.nix");
     Expr e3 = ATmake("Deref(Hash(<str>))", ((string) h3).c_str());
 
     evalTest(e3);