diff --git a/src/develop.rs b/src/develop.rs
index a1da79637..9d9357980 100644
--- a/src/develop.rs
+++ b/src/develop.rs
@@ -44,6 +44,7 @@ pub fn develop(
     venv_dir: &Path,
     release: bool,
     strip: bool,
+    extras: Vec<String>,
 ) -> Result<()> {
     let target = Target::from_target_triple(None)?;
 
@@ -71,14 +72,17 @@ pub fn develop(
 
     // Install dependencies
     if !build_context.metadata21.requires_dist.is_empty() {
-        let mut args = vec!["-m", "pip", "install"];
-        args.extend(
-            build_context
-                .metadata21
-                .requires_dist
-                .iter()
-                .map(|x| x.as_str()),
-        );
+        let mut args = vec!["-m".to_string(), "pip".to_string(), "install".to_string()];
+        args.extend(build_context.metadata21.requires_dist.iter().map(|x| {
+            let mut pkg = x.clone();
+            // Remove extra marker to make it installable with pip
+            for extra in &extras {
+                pkg = pkg
+                    .replace(&format!(" and extra == '{}'", extra), "")
+                    .replace(&format!("; extra == '{}'", extra), "");
+            }
+            pkg
+        }));
         let status = Command::new(&interpreter.executable)
             .args(&args)
             .status()
diff --git a/src/main.rs b/src/main.rs
index 76383fc3b..843202627 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -244,6 +244,11 @@ enum Opt {
         /// Use as `--rustc-extra-args="--my-arg"`
         #[structopt(long = "rustc-extra-args")]
         rustc_extra_args: Vec<String>,
+        /// Install extra requires aka. optional dependencies
+        ///
+        /// Use as `--extras=extra1,extra2`
+        #[structopt(long, use_delimiter = true, multiple = false)]
+        extras: Vec<String>,
     },
     /// Build only a source distribution (sdist) without compiling.
     ///
@@ -549,6 +554,7 @@ fn run() -> Result<()> {
             rustc_extra_args,
             release,
             strip,
+            extras,
         } => {
             let venv_dir = match (env::var_os("VIRTUAL_ENV"), env::var_os("CONDA_PREFIX")) {
                 (Some(dir), None) => PathBuf::from(dir),
@@ -574,6 +580,7 @@ fn run() -> Result<()> {
                 &venv_dir,
                 release,
                 strip,
+                extras,
             )?;
         }
         Opt::SDist { manifest_path, out } => {
diff --git a/tests/common/develop.rs b/tests/common/develop.rs
index fa304cf71..dee0c46e1 100644
--- a/tests/common/develop.rs
+++ b/tests/common/develop.rs
@@ -70,6 +70,7 @@ pub fn test_develop(package: impl AsRef<Path>, bindings: Option<String>) -> Resu
         &venv_dir,
         false,
         cfg!(feature = "faster-tests"),
+        vec![],
     )?;
 
     check_installed(&package.as_ref(), &python)?;