diff --git a/tix.spec b/tix.spec
index 76b307a..ef0b6ef 100644
--- a/tix.spec
+++ b/tix.spec
@@ -16,7 +16,7 @@ Source0: http://downloads.sourceforge.net/project/%{name}/%{name}/%{version}/Tix
 #  0: Fixes BZ#81297 (soname of libraries)
 Patch0: tix-8.4.2-link.patch
 Patch1: tix-8.4.3-tcl86.patch
-Requires: tcl(abi) = %{tcl_version}
+Requires: tcl(abi) = 8.5
 Requires: tcl >= %{tcltkver}, tk >= %{tcltkver}
 Requires: /etc/ld.so.conf.d
 Buildrequires: tcl-devel >= %{tcltkver}, tk-devel >= %{tcltkver}