diff --git a/adobe-source-han-sans-cn-fonts.spec b/adobe-source-han-sans-cn-fonts.spec
index 2545f0d..5d899fd 100644
--- a/adobe-source-han-sans-cn-fonts.spec
+++ b/adobe-source-han-sans-cn-fonts.spec
@@ -31,7 +31,7 @@ Japanese, and Korean.
 
 
 %prep
-%autosetup -n %{archivename}
+%autosetup -c
 
 %build