diff --git a/Cargo.toml b/Cargo.toml
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,4 +16,3 @@
 serde-xml-rs = "0.2.1"
 serde_derive = "1.0"
 serde_json = "1.0"
-toml = "0.4.10"
diff --git a/src/bin/rust_qt_binding_generator.rs b/src/bin/rust_qt_binding_generator.rs
--- a/src/bin/rust_qt_binding_generator.rs
+++ b/src/bin/rust_qt_binding_generator.rs
@@ -12,6 +12,12 @@
                 .long("overwrite-implementation")
                 .help("Overwrite existing implementation."),
         )
+        .arg(
+            Arg::with_name("edition")
+                .long("edition")
+                .takes_value(true)
+                .help("Rust edition (default 2015)")
+        )
         .arg(
             Arg::with_name("config")
                 .multiple(true)
@@ -22,8 +28,9 @@
         .get_matches();
 
     let overwrite_implementation = matches.is_present("overwrite-implementation");
+    let edition = matches.value_of("edition");
     for config in matches.values_of("config").unwrap() {
-        if let Err(e) = generate_bindings_from_config_file(config, overwrite_implementation) {
+        if let Err(e) = generate_bindings_from_config_file(config, overwrite_implementation, edition) {
             eprintln!("{}", e);
             ::std::process::exit(1);
         }
diff --git a/src/configuration.rs b/src/configuration.rs
--- a/src/configuration.rs
+++ b/src/configuration.rs
@@ -5,7 +5,6 @@
 use std::fs;
 use std::path::{Path, PathBuf};
 use std::rc::Rc;
-use toml;
 
 mod json {
     use super::Rust;
@@ -466,27 +465,12 @@
         post_process_object(object, &mut objects, &json.objects)?;
     }
 
-    let rust_edition: RustEdition = {
-        let mut buf = config_file.to_path_buf();
-        buf.pop();
-        buf.push(&json.rust.dir);
-        buf.push("Cargo.toml");
-        if !buf.exists() {
-            return Err(format!("{} does not exist.", buf.display()).into());
-        }
-        let manifest: toml::Value = fs::read_to_string(&buf)?.parse()?;
-        manifest["package"]
-            .get("edition")
-            .and_then(|val| val.as_str())
-            .into()
-    };
-
     Ok(Config {
         config_file: config_file.into(),
         cpp_file: json.cpp_file,
         objects,
         rust: json.rust,
-        rust_edition,
+        rust_edition: RustEdition::Rust2015,
         overwrite_implementation: json.overwrite_implementation,
     })
 }
diff --git a/src/lib.rs b/src/lib.rs
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -3,7 +3,6 @@
 extern crate serde_derive;
 extern crate serde_json;
 extern crate serde_xml_rs;
-extern crate toml;
 
 pub mod build;
 pub mod configuration;
@@ -34,10 +33,12 @@
 pub fn generate_bindings_from_config_file<P: AsRef<Path>>(
     config_file: P,
     overwrite_implementation: bool,
+    edition: Option<&str>,
 ) -> Result<(), Box<Error>> {
     let mut config = read_bindings_file(config_file)?;
     if overwrite_implementation {
         config.overwrite_implementation = true;
     }
+    config.rust_edition = edition.into();
     generate_bindings(&config)
 }