diff --git a/src/cmd/base32/mod.rs b/src/cmd/base32/mod.rs
index 60ea587..ee48c7e 100644
--- a/src/cmd/base32/mod.rs
+++ b/src/cmd/base32/mod.rs
@@ -33,7 +33,7 @@ impl Cmd for Base32 {
             }
             _ => ColorChoice::Never,
         };
-        if let Some(files) = matches.get_many::<String>("files") {
+        if let Some(files) = matches.get_many::<String>("file") {
             let (len, _) = files.size_hint();
             for (index, file) in files.into_iter().enumerate() {
                 if { len > 1 || matches.get_flag("verbose") } && !matches.get_flag("QUIET") {
@@ -75,10 +75,7 @@ impl Cmd for Base32 {
 
 pub fn args() -> [Arg; 7] {
     [
-        Arg::new("INPUT")
-            .help("The input file to use")
-            .num_args(1..)
-            .default_value("-"),
+        args::file(),
         Arg::new("DECODE")
             .help("Decode rather than encode")
             .short('d')
diff --git a/src/cmd/base64/mod.rs b/src/cmd/base64/mod.rs
index c707c69..8e176ca 100644
--- a/src/cmd/base64/mod.rs
+++ b/src/cmd/base64/mod.rs
@@ -32,7 +32,7 @@ impl Cmd for Base64 {
             }
             _ => ColorChoice::Never,
         };
-        if let Some(files) = matches.get_many::<String>("INPUT") {
+        if let Some(files) = matches.get_many::<String>("file") {
             let (len, _) = files.size_hint();
             for (index, file) in files.enumerate() {
                 if { len > 1 || matches.get_flag("VERBOSE") } && !matches.get_flag("QUIET") {
diff --git a/src/cmd/rev/mod.rs b/src/cmd/rev/mod.rs
index 2ae69d3..06d5b94 100644
--- a/src/cmd/rev/mod.rs
+++ b/src/cmd/rev/mod.rs
@@ -18,10 +18,7 @@ impl Cmd for Rev {
             .args([
                 args::header(),
                 args::color(),
-                Arg::new("file")
-                    .help("if file is '-' read from stdin")
-                    .num_args(1..)
-                    .default_value("-"),
+                args::file(),
             ])
     }