diff --git a/src/check-driverimpls.pl b/src/check-driverimpls.pl
index b175e710f1d4a8499ab464d703c367be7c1a9a99..3c0d54724cef0e8808a905663208def08dfcd276 100755
--- a/src/check-driverimpls.pl
+++ b/src/check-driverimpls.pl
@@ -41,7 +41,7 @@ while (<>) {
 
             my $suffix = $impl;
             my $prefix = $impl;
-            $prefix =~ s/^([a-z]+(?:Unified)?)(.*?)$/$1/;
+            $prefix =~ s/^([a-z]+)(.*?)$/$1/;
 
             if (defined $mainprefix) {
                 if ($mainprefix ne $prefix) {
@@ -53,7 +53,7 @@ while (<>) {
             }
 
             if ($api !~ /^$mainprefix/) {
-                $suffix =~ s/^[a-z]+(?:Unified)?//;
+                $suffix =~ s/^[a-z]+//;
                 $suffix =~ s/^([A-Z]+)/lc $1/e;
             }