diff --git a/anda/devs/ghostty/nightly/ghostty-nightly.spec b/anda/devs/ghostty/nightly/ghostty-nightly.spec
index 5644953f18..c8289e6b62 100644
--- a/anda/devs/ghostty/nightly/ghostty-nightly.spec
+++ b/anda/devs/ghostty/nightly/ghostty-nightly.spec
@@ -135,7 +135,7 @@ This package contains files for Ghostty's terminfo. Available for debugging use.
 
 %prep
 /usr/bin/minisign -V -m %{SOURCE0} -x %{SOURCE1} -P %{public_key}
-%autosetup -n %{base_name}-source
+%autosetup -n %{base_name}-%{ver}-main+%{shortcommit}
 
 ZIG_GLOBAL_CACHE_DIR="%{cache_dir}" ./nix/build-support/fetch-zig-cache.sh