diff --git a/c_check b/c_check
index 9c8b1abac..e24943a29 100644
--- a/c_check
+++ b/c_check
@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl
 
 #use File::Basename;
 # use File::Temp qw(tempfile);
diff --git a/exports/gensymbol b/exports/gensymbol
index 857a17a9e..e7210a030 100644
--- a/exports/gensymbol
+++ b/exports/gensymbol
@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl
 
 # Changelog
 # 2017/09/03 staticfloat
diff --git a/f_check b/f_check
index ffe9c6b46..d044f2547 100644
--- a/f_check
+++ b/f_check
@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl
 
 $hostos   = `uname -s | sed -e s/\-.*//`;    chop($hostos);
 
diff --git a/interface/create b/interface/create
index b7be8ab6e..0b9cefa2b 100755
--- a/interface/create
+++ b/interface/create
@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl
 
 $count = 0;