diff --git a/bash_tealdeer b/bash_tealdeer
index e45c886..2a1429d 100644
--- a/bash_tealdeer
+++ b/bash_tealdeer
@@ -14,7 +14,7 @@ _tealdeer()
 			return
 			;;
 		-p|--platform)
-			COMPREPLY=( $(compgen -W 'linux osx sunos windows' -- "${cur}") )
+			COMPREPLY=( $(compgen -W 'linux macos sunos windows' -- "${cur}") )
 			return
 			;;
 		--color)
diff --git a/docs/src/usage.txt b/docs/src/usage.txt
index a88af6f..4f88bc9 100644
--- a/docs/src/usage.txt
+++ b/docs/src/usage.txt
@@ -13,10 +13,9 @@ ARGS:
 OPTIONS:
     -l, --list                   List all commands in the cache
     -f, --render <FILE>          Render a specific markdown file
-    -p, --platform <PLATFORM>    Override the operating system [possible values: linux, osx, sunos,
-                                 windows]
-    -o, --os <OS>                Deprecated alias of `platform` [possible values: linux, osx, sunos,
-                                 windows]
+    -p, --platform <PLATFORM>    Override the operating system [possible values: linux, macos,
+                                 windows, sunos, osx]
+    -o, --os <OS>                Deprecated alias of `platform`
     -L, --language <LANGUAGE>    Override the language
     -u, --update                 Update the local cache
     -c, --clear-cache            Clear the local cache
diff --git a/fish_tealdeer b/fish_tealdeer
index 57d3e31..ee68e2a 100644
--- a/fish_tealdeer
+++ b/fish_tealdeer
@@ -7,7 +7,7 @@ complete -c tldr -s h -l help        -d 'Print the help message.' -f
 complete -c tldr -s v -l version     -d 'Show version information.' -f
 complete -c tldr -s l -l list        -d 'List all commands in the cache.' -f
 complete -c tldr -s f -l render      -d 'Render a specific markdown file.' -r
-complete -c tldr -s p -l platform    -d 'Override the operating system.' -xa 'linux osx sunos windows'
+complete -c tldr -s p -l platform    -d 'Override the operating system.' -xa 'linux macos sunos windows'
 complete -c tldr -s u -l update      -d 'Update the local cache.' -f
 complete -c tldr -s c -l clear-cache -d 'Clear the local cache.' -f
 complete -c tldr -s p -l pager       -d 'Use a pager to page output.' -f
diff --git a/src/main.rs b/src/main.rs
index c90c128..45419f9 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -84,7 +84,7 @@ struct Args {
         short = 'p',
         long = "platform",
         requires = "command",
-        possible_values = ["linux", "osx", "sunos", "windows"],
+        possible_values = ["linux", "macos", "windows", "sunos", "osx"],
     )]
     platform: Option<PlatformType>,
 
@@ -93,7 +93,8 @@ struct Args {
         short = 'o',
         long = "os",
         requires = "command",
-        possible_values = ["linux", "osx", "sunos", "windows"],
+        possible_values = ["linux", "macos", "windows", "sunos", "osx"],
+        hide_possible_values = true,
     )]
     os: Option<PlatformType>,
 
diff --git a/src/types.rs b/src/types.rs
index 7d018a8..3981776 100644
--- a/src/types.rs
+++ b/src/types.rs
@@ -31,11 +31,11 @@ impl str::FromStr for PlatformType {
     fn from_str(s: &str) -> Result<Self, Self::Err> {
         match s {
             "linux" => Ok(Self::Linux),
-            "osx" => Ok(Self::OsX),
+            "osx" | "macos" => Ok(Self::OsX),
             "sunos" => Ok(Self::SunOs),
             "windows" => Ok(Self::Windows),
             other => Err(format!(
-                "Unknown OS: {}. Possible values: linux, osx, sunos, windows",
+                "Unknown OS: {}. Possible values: linux, macos, osx, sunos, windows",
                 other
             )),
         }
diff --git a/zsh_tealdeer b/zsh_tealdeer
index 7bf5fcf..28cd34b 100644
--- a/zsh_tealdeer
+++ b/zsh_tealdeer
@@ -16,7 +16,7 @@ _tealdeer() {
         "($I -f --render)"{-f,--render}"[Render a specific markdown file]:file:_files"
         "($I -p --platform)"{-p,--platform}'[Override the operating system]:platform:((
             linux
-            osx
+            macos
             sunos
             windows
         ))'