diff --git a/ocaml-findlib.spec b/ocaml-findlib.spec
index 556855c..e14b4da 100644
--- a/ocaml-findlib.spec
+++ b/ocaml-findlib.spec
@@ -68,7 +68,7 @@ Requires:       ocaml-camlp4-devel
 The ocaml-findlib-camlp4 contains signature files for developing applications that use camlp4
 
 %prep
-%autosetup -p1
+%autosetup -p1 -n findlib-%{version}
 
 %build
 (cd tools/extract_args && make)