diff --git a/src/tools/mkdir.pl b/src/tools/mkdir.pl
index e08d5a5cc..95efc0052 100644
--- a/src/tools/mkdir.pl
+++ b/src/tools/mkdir.pl
@@ -6,7 +6,7 @@
 
 use File::Path;
 use Getopt::Std;
-getopt();
+getopt "";
 
 foreach $dir ( @ARGV )
 {
diff --git a/src/tools/rm.pl b/src/tools/rm.pl
index 3d7085b69..83f54571a 100644
--- a/src/tools/rm.pl
+++ b/src/tools/rm.pl
@@ -6,7 +6,7 @@ use File::Path;
 use File::Find;
 use Getopt::Std;
 
-getopt();
+getopt "";
 
 foreach $arg ( @ARGV )
 {