diff --git a/.vscode/cspell.dictionaries/acronyms+names.wordlist.txt b/.vscode/cspell.dictionaries/acronyms+names.wordlist.txt
index 53307bf35..81bc3bc5f 100644
--- a/.vscode/cspell.dictionaries/acronyms+names.wordlist.txt
+++ b/.vscode/cspell.dictionaries/acronyms+names.wordlist.txt
@@ -48,6 +48,7 @@ EditorConfig
 FreeBSD
 Gmail
 GNU
+Illumos
 Irix
 MS-DOS
 MSDOS
diff --git a/docs/compiles_table.py b/docs/compiles_table.py
index aa1b8703c..e2c4c0a8d 100644
--- a/docs/compiles_table.py
+++ b/docs/compiles_table.py
@@ -40,6 +40,8 @@ TARGETS = [
     "x86_64-linux-android",
     # Solaris
     "x86_64-sun-solaris",
+    # Illumos
+    "x86_64-unknown-illumos",
     # WASM
     "wasm32-wasi",
     # Redox
diff --git a/src/uucore/src/lib/features/fsext.rs b/src/uucore/src/lib/features/fsext.rs
index b8207d68c..cf17067e8 100644
--- a/src/uucore/src/lib/features/fsext.rs
+++ b/src/uucore/src/lib/features/fsext.rs
@@ -90,6 +90,8 @@ pub use libc::statfs as StatFs;
     target_os = "netbsd",
     target_os = "bitrig",
     target_os = "dragonfly",
+    target_os = "illumos",
+    target_os = "solaris",
     target_os = "redox"
 ))]
 pub use libc::statvfs as StatFs;
@@ -100,13 +102,15 @@ pub use libc::statvfs as StatFs;
     target_os = "android",
     target_os = "freebsd",
     target_os = "openbsd",
+    target_os = "redox"
 ))]
 pub use libc::statfs as statfs_fn;
 #[cfg(any(
     target_os = "netbsd",
     target_os = "bitrig",
-    target_os = "dragonfly",
-    target_os = "redox"
+    target_os = "illumos",
+    target_os = "solaris",
+    target_os = "dragonfly"
 ))]
 pub use libc::statvfs as statfs_fn;
 
@@ -476,7 +480,7 @@ pub fn read_fs_list() -> Vec<MountInfo> {
         }
         mounts
     }
-    #[cfg(target_os = "redox")]
+    #[cfg(any(target_os = "redox", target_os = "illumos", target_os = "solaris"))]
     {
         // No method to read mounts, yet
         Vec::new()