diff --git a/lib/std/c.zig b/lib/std/c.zig
index a833031c9c098029096278945f329b6ada868cef..99002f0117dbeebd229fb5f66f1afb759903538c 100644
--- a/lib/std/c.zig
+++ b/lib/std/c.zig
@@ -2610,7 +2610,8 @@ pub const SHUT = switch (native_os) {
 
 /// Signal types
 pub const SIG = switch (native_os) {
-    .linux, .emscripten => linux.SIG,
+    .linux => linux.SIG,
+    .emscripten => emscripten.SIG,
     .windows => enum(u32) {
         /// interrupt
         INT = 2,
diff --git a/lib/std/os/emscripten.zig b/lib/std/os/emscripten.zig
index b7beb70eb7e7c05ed48802c962edd579df63e6a5..13273c8dc6abba1299a2341355a16eebb806b15f 100644
--- a/lib/std/os/emscripten.zig
+++ b/lib/std/os/emscripten.zig
@@ -467,8 +467,8 @@ pub const SHUT = struct {
 pub const SIG = linux.SIG;
 
 pub const Sigaction = extern struct {
-    pub const handler_fn = *align(1) const fn (i32) callconv(.c) void;
-    pub const sigaction_fn = *const fn (i32, *const siginfo_t, ?*anyopaque) callconv(.c) void;
+    pub const handler_fn = *align(1) const fn (SIG) callconv(.c) void;
+    pub const sigaction_fn = *const fn (SIG, *const siginfo_t, ?*anyopaque) callconv(.c) void;
 
     handler: extern union {
         handler: ?handler_fn,
@@ -484,7 +484,7 @@ pub fn sigemptyset() sigset_t {
     return @splat(0);
 }
 pub const siginfo_t = extern struct {
-    signo: i32,
+    signo: SIG,
     errno: i32,
     code: i32,
     fields: siginfo_fields_union,