diff --git a/shim-signed.spec b/shim-signed.spec
index b29776a..9db3346 100644
--- a/shim-signed.spec
+++ b/shim-signed.spec
@@ -9,7 +9,7 @@ URL:            http://www.codon.org.uk/~mjg59/shim/
 Source0:	shim.efi
 
 #BuildRequires: shim-unsigned = %{version}-%{release}
-BuildRequires: shim-unsigned = 0.2-3.fc18
+BuildRequires: shim-unsigned = 0.2-3%{?dist}
 BuildRequires: pesign >= 0.100-1%{dist}
 
 # Shim uses OpenSSL, but cannot use the system copy as the UEFI ABI is not
@@ -41,7 +41,7 @@ the UEFI signing service.
 %package -n shim
 Summary: First-stage UEFI bootloader
 #Requires: shim-unsigned >= %{version}-%{release}
-Requires: shim-unsigned >= 0.2-3.fc18
+Requires: shim-unsigned >= 0.2-3%{?dist}
 Provides: shim-signed = %{version}-%{release}
 Obsoletes: shim-signed < %{version}-%{release}