diff --git a/src/unix/mod.rs b/src/unix/mod.rs
index 6fc21538cca37..4060b4eebfb70 100644
--- a/src/unix/mod.rs
+++ b/src/unix/mod.rs
@@ -124,6 +124,9 @@ cfg_if! {
     } else if #[cfg(target_env = "musl")] {
         #[link(name = "c", kind = "static")]
         extern {}
+    } else if #[cfg(target_os = "emscripten")] {
+        #[link(name = "c")]
+        extern {}
     } else if #[cfg(any(target_os = "macos",
                         target_os = "ios",
                         target_os = "android",
@@ -664,7 +667,9 @@ extern {
 }
 
 cfg_if! {
-    if #[cfg(any(target_os = "linux", target_os = "android"))] {
+    if #[cfg(any(target_os = "linux",
+                 target_os = "android",
+                 target_os = "emscripten"))] {
         mod notbsd;
         pub use self::notbsd::*;
     } else if #[cfg(any(target_os = "macos",
diff --git a/src/unix/notbsd/linux/mod.rs b/src/unix/notbsd/linux/mod.rs
index 355e2d2ab2bec..512d5adc3879a 100644
--- a/src/unix/notbsd/linux/mod.rs
+++ b/src/unix/notbsd/linux/mod.rs
@@ -511,7 +511,8 @@ extern {
 }
 
 cfg_if! {
-    if #[cfg(target_env = "musl")] {
+    if #[cfg(any(target_env = "musl",
+                 target_os = "emscripten"))] {
         mod musl;
         pub use self::musl::*;
     } else if #[cfg(any(target_arch = "mips", target_arch = "mipsel"))] {
diff --git a/src/unix/notbsd/mod.rs b/src/unix/notbsd/mod.rs
index 1d132b2747ae1..5d18853c007d1 100644
--- a/src/unix/notbsd/mod.rs
+++ b/src/unix/notbsd/mod.rs
@@ -50,7 +50,7 @@ s! {
         pub ai_protocol: ::c_int,
         pub ai_addrlen: socklen_t,
 
-        #[cfg(target_os = "linux")]
+        #[cfg(any(target_os = "linux", target_os = "emscripten"))]
         pub ai_addr: *mut ::sockaddr,
 
         pub ai_canonname: *mut c_char,
@@ -610,7 +610,8 @@ extern {
 }
 
 cfg_if! {
-    if #[cfg(target_os = "linux")] {
+    if #[cfg(any(target_os = "linux",
+                 target_os = "emscripten"))] {
         mod linux;
         pub use self::linux::*;
     } else if #[cfg(target_os = "android")] {