diff --git a/c_check b/c_check
index 9dc237beb..7c90192df 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 21a1b703d..89d88a58d 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 997e02393..bbea2f9ad 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);