diff --git a/post-package-hashtoc b/post-package-hashtoc
index 9a79614b67594902011535109879e5e00999989c..f28d2e219d332eb0ae8a607c04f14528d6ee829e 100755
--- a/post-package-hashtoc
+++ b/post-package-hashtoc
@@ -1,4 +1,4 @@
 #!/bin/sh
 
-sed -i -e '/# \[dependencies\].*/iBuildRequires:  openssl-devel\n' $1
+sed -i -re 's|BuildRequires:\s*rust-packaging$|&\nBuildRequires:  openssl-devel\n|' $1
 sed -i -e 's|^%{_bindir}/hashtoc|%attr(4755, root, root) %{_bindir}/hashtoc|' $1