3 files changed, 6 insertions, 7 deletions
diff --git a/src/plugins/currency.rs b/src/plugins/currency.rs
index 78ae593..d6cf928 100644
--- a/src/plugins/currency.rs
+++ b/src/plugins/currency.rs
@@ -1,7 +1,6 @@
 extern crate reqwest;
 extern crate serde;
 extern crate serde_json;
-extern crate regex;
 
 use std::io::Read;
 use std::num::ParseFloatError;
@@ -131,11 +130,11 @@ impl Plugin for Currency {
         false
     }
 
-    fn execute(&mut self, _: &IrcServer, _: &Message) -> Result<(), IrcError> {
+    fn execute(&self, _: &IrcServer, _: &Message) -> Result<(), IrcError> {
         panic!("Currency does not implement the execute function!")
     }
 
-    fn command(&mut self, server: &IrcServer, mut command: PluginCommand) -> Result<(), IrcError> {
+    fn command(&self, server: &IrcServer, mut command: PluginCommand) -> Result<(), IrcError> {
 
         if command.tokens.is_empty() {
             return self.invalid_command(server, &command);
diff --git a/src/plugins/emoji.rs b/src/plugins/emoji.rs
index 09d5c27..1bb714c 100644
--- a/src/plugins/emoji.rs
+++ b/src/plugins/emoji.rs
@@ -105,7 +105,7 @@ impl Plugin for Emoji {
         }
     }
 
-    fn execute(&mut self, server: &IrcServer, message: &Message) -> Result<(), IrcError> {
+    fn execute(&self, server: &IrcServer, message: &Message) -> Result<(), IrcError> {
         match message.command {
             Command::PRIVMSG(_, ref content) => {
                 self.emoji(server, content, message.response_target().unwrap())
@@ -114,7 +114,7 @@ impl Plugin for Emoji {
         }
     }
 
-    fn command(&mut self, server: &IrcServer, command: PluginCommand) -> Result<(), IrcError> {
+    fn command(&self, server: &IrcServer, command: PluginCommand) -> Result<(), IrcError> {
         server.send_notice(&command.source,
                            "This Plugin does not implement any commands.")
     }
diff --git a/src/plugins/help.rs b/src/plugins/help.rs
index c4ddcd4..8f3fb4d 100644
--- a/src/plugins/help.rs
+++ b/src/plugins/help.rs
@@ -21,11 +21,11 @@ impl Plugin for Help {
         false
     }
 
-    fn execute(&mut self, _: &IrcServer, _: &Message) -> Result<(), IrcError> {
+    fn execute(&self, _: &IrcServer, _: &Message) -> Result<(), IrcError> {
         panic!("Help does not implement the execute function!")
     }
 
-    fn command(&mut self, server: &IrcServer, command: PluginCommand) -> Result<(), IrcError> {
+    fn command(&self, server: &IrcServer, command: PluginCommand) -> Result<(), IrcError> {
         self.help(server, command)
     }
 }