diff --git a/mod.zig b/mod.zig
index 7ab7f3a4cdbc8ecf552657241f86a45df60492a6..241090d30dee9afd64b221011f88077e2fcef204 100644
--- a/mod.zig
+++ b/mod.zig
@@ -637,7 +637,13 @@ pub const setpgid = @compileError("TODO: setpgid");
 // getppid
 // pid_t getppid(void);
 // asmlinkage long sys_getppid(void);
-pub const getppid = @compileError("TODO: getppid");
+pub fn getppid() errno.Error!pid_t {
+    const r = syscall0(.getppid);
+    return switch (_errno(r)) {
+        .ok => @intCast(r),
+        _ => |c| errno.errorFromInt(@intFromEnum(c)),
+    };
+}
 
 // getpgrp
 // pid_t getpgrp(void);
diff --git a/test.zig b/test.zig
index 7b67e5300f55490bf047fcc5c94820a2c887728f..0c369600affca40c7e8ba09b5e7fb082c425ba1c 100644
--- a/test.zig
+++ b/test.zig
@@ -16,4 +16,5 @@ test {
     _ = &linux.getgid;
     _ = &linux.geteuid;
     _ = &linux.getegid;
+    _ = &linux.getppid;
 }