diff --git a/util/mk1mf.pl b/util/mk1mf.pl
index ab806d1d23..2b383e2339 100755
--- a/util/mk1mf.pl
+++ b/util/mk1mf.pl
@@ -1269,15 +1269,15 @@ sub perlasm_compile_target
 
 	my($ret);
 	$bname =~ s/(.*)\.[^\.]$/$1/;
-	$ret ="\$(TMP_D)$o$bname.asm: $source\n";
+	$ret ="\$(TMP_D)$o$bname$asm_suffix: $source\n";
 	$ret.="\t\$(PERL) $source $asmtype \$(CFLAG) >\$\@\n";
 	if ($fipscanisteronly)
 		{
-		$ret .= "\t\$(PERL) util\\fipsas.pl . \$@ norunasm \$(CFLAG)\n";
+		$ret .= "\t\$(PERL) util$o.pl . \$@ norunasm \$(CFLAG)\n";
 		}
 	$ret .= "\n";
-	$ret.="$target: \$(TMP_D)$o$bname.asm\n";
-	$ret.="\t\$(ASM) $afile\$\@ \$(TMP_D)$o$bname.asm\n\n";
+	$ret.="$target: \$(TMP_D)$o$bname$asm_suffix\n";
+	$ret.="\t\$(ASM) $afile\$\@ \$(TMP_D)$o$bname$asm_suffix\n\n";
 	return($ret);
 	}
 
diff --git a/util/pl/unix.pl b/util/pl/unix.pl
index 1e0902a68a..72d3b441e1 100644
--- a/util/pl/unix.pl
+++ b/util/pl/unix.pl
@@ -26,6 +26,7 @@ else
 		{ $cflags="-O"; }
 	}
 $obj='.o';
+$asm_suffix='.s';
 $ofile='-o ';
 
 # EXE linking stuff