diff --git a/completions/handlr.fish b/completions/handlr.fish
index cf2d346..76e7e92 100644
--- a/completions/handlr.fish
+++ b/completions/handlr.fish
@@ -18,7 +18,7 @@ function __handlr_autocomplete
   end
 
   subcommands
-  _set
+  _set_add
   complete -f -c handlr -n '__fish_seen_subcommand_from get' -a '(handlr autocomplete -m)'
   complete -f -c handlr -n '__fish_seen_subcommand_from get' -l 'json'
   complete -f -c handlr -n '__fish_seen_subcommand_from unset' -a '(handlr autocomplete -m)'
diff --git a/src/apps/user.rs b/src/apps/user.rs
index aa591e2..58707c1 100644
--- a/src/apps/user.rs
+++ b/src/apps/user.rs
@@ -51,11 +51,20 @@ impl MimeApps {
                     .into_iter()
                     .map(|h| (h, h.get_entry().unwrap().name))
                     .collect::<Vec<_>>();
-                let selected =
-                    config.select(handlers.iter().map(|h| h.1.clone()))?;
-                let selected =
-                    handlers.into_iter().find(|h| h.1 == selected).unwrap().0;
-                Ok(selected.clone())
+
+                let handler = {
+                    let name =
+                        config.select(handlers.iter().map(|h| h.1.clone()))?;
+
+                    handlers
+                        .into_iter()
+                        .find(|h| h.1 == name)
+                        .unwrap()
+                        .0
+                        .clone()
+                };
+
+                Ok(handler)
             }
             Some(handlers) => Ok(handlers.get(0).unwrap().clone()),
             None => self
diff --git a/src/config.rs b/src/config.rs
index 35b63b4..626fb39 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -1,4 +1,4 @@
-use crate::Result;
+use crate::{Error, Result};
 use serde::{Deserialize, Serialize};
 
 #[derive(Serialize, Deserialize)]
@@ -41,14 +41,21 @@ impl Config {
                 .spawn()?
         };
 
-        process
-            .stdin
-            .unwrap()
-            .write_all(opts.join("\n").as_bytes())?;
+        let output = {
+            process
+                .stdin
+                .ok_or(Error::Selector(self.selector.clone()))?
+                .write_all(opts.join("\n").as_bytes())?;
 
-        let mut output = String::with_capacity(24);
-        process.stdout.unwrap().read_to_string(&mut output)?;
-        let output = output.trim_end().to_owned();
+            let mut output = String::with_capacity(24);
+
+            process
+                .stdout
+                .ok_or(Error::Selector(self.selector.clone()))?
+                .read_to_string(&mut output)?;
+
+            output.trim_end().to_owned()
+        };
 
         Ok(output)
     }
diff --git a/src/error.rs b/src/error.rs
index 8d37679..9eea3c6 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -20,6 +20,8 @@ pub enum Error {
     BadEntry(std::path::PathBuf),
     #[error(transparent)]
     MimeDetect(#[from] mime_detective::DetectiveError),
+    #[error("error spawning selector process '{0}'")]
+    Selector(String),
 }
 
 pub type Result<T, E = Error> = std::result::Result<T, E>;