diff --git a/plugins/deposit b/plugins/deposit
index 1ac613a..5e08846 100644
--- a/plugins/deposit
+++ b/plugins/deposit
@@ -1,3 +1,5 @@
+#!perl
+
 # This plugin must at the end in the plugins file.
 
 HELP "deposit [<amount>]" => "[Create and] deposit into an account";
diff --git a/plugins/give b/plugins/give
index fd162ed..784c82a 100644
--- a/plugins/give
+++ b/plugins/give
@@ -1,3 +1,5 @@
+#!perl
+
 HELP "give [<account> [<amount>]]" => "Transfer money to user's account";
 
 sub command :Tab(give) {
diff --git a/plugins/help b/plugins/help
index 4ddc48c..ed95ffe 100644
--- a/plugins/help
+++ b/plugins/help
@@ -1,3 +1,5 @@
+#!perl
+
 HELP "help" => "The stuff you're looking at right now :)";
 
 use List::Util qw(max);
diff --git a/plugins/log b/plugins/log
index 043eb4f..57d8a45 100644
--- a/plugins/log
+++ b/plugins/log
@@ -1,3 +1,5 @@
+#!perl
+
 sub command { NEXT }
 
 my $filename = ".revbank.log";
diff --git a/plugins/products b/plugins/products
index 1c5df66..0b6d96a 100644
--- a/plugins/products
+++ b/plugins/products
@@ -1,3 +1,5 @@
+#!perl
+
 HELP "<productID>" => "Look up products from database";
 HELP "edit" => "Edit product list";
 
diff --git a/plugins/restart b/plugins/restart
index 0ec00d4..63f0b72 100644
--- a/plugins/restart
+++ b/plugins/restart
@@ -1,3 +1,5 @@
+#!perl
+
 HELP "restart" => "Attempt to restart the RevBank shell";
 
 sub command :Tab(restart) {
diff --git a/plugins/sigint b/plugins/sigint
index ee704f5..e6ce669 100644
--- a/plugins/sigint
+++ b/plugins/sigint
@@ -1,3 +1,5 @@
+#!perl
+
 sub command { NEXT }
 
 $SIG{INT} = 'IGNORE';
diff --git a/plugins/take b/plugins/take
index efccbd3..0aff29c 100644
--- a/plugins/take
+++ b/plugins/take
@@ -1,3 +1,5 @@
+#!perl
+
 HELP "take [<accounts> [<amount>]]" => "Take money from users (equal parts)";
 
 sub command :Tab(take,steal) {
diff --git a/plugins/undo b/plugins/undo
index 0120917..0b01c5c 100644
--- a/plugins/undo
+++ b/plugins/undo
@@ -1,3 +1,5 @@
+#!perl
+
 HELP "undo [<id>]" => "Undo a certain transaction";
 
 my $filename = ".revbank.undo";
diff --git a/plugins/users b/plugins/users
index f4d5485..4cf978d 100644
--- a/plugins/users
+++ b/plugins/users
@@ -1,3 +1,5 @@
+#!perl
+
 HELP "<account>" => "[Pay with your account and] show balance";
 HELP "list" => "List accounts and balances";
 HELP "shame" => "Display Hall of Shame (negative balances)";
diff --git a/plugins/withdraw b/plugins/withdraw
index 822d68f..40cbb42 100644
--- a/plugins/withdraw
+++ b/plugins/withdraw
@@ -1,3 +1,5 @@
+#!perl
+
 HELP "<amount>" => "Withdraw or enter price manually";
 
 sub command {