diff --git a/library/std/src/sys/sync/once/mod.rs b/library/std/src/sys/sync/once/mod.rs
index aeea884b9f617..5796c6d207dba 100644
--- a/library/std/src/sys/sync/once/mod.rs
+++ b/library/std/src/sys/sync/once/mod.rs
@@ -12,7 +12,7 @@ cfg_select! {
         all(target_os = "windows", not(target_vendor="win7")),
         target_os = "linux",
         target_os = "android",
-        all(target_arch = "wasm32", target_feature = "atomics"),
+        all(target_family = "wasm", target_feature = "atomics"),
         target_os = "freebsd",
         target_os = "motor",
         target_os = "openbsd",
diff --git a/library/std/src/sys/sync/thread_parking/mod.rs b/library/std/src/sys/sync/thread_parking/mod.rs
index 74b5b72b19a75..9d5a0a996b115 100644
--- a/library/std/src/sys/sync/thread_parking/mod.rs
+++ b/library/std/src/sys/sync/thread_parking/mod.rs
@@ -3,7 +3,7 @@ cfg_select! {
         all(target_os = "windows", not(target_vendor = "win7")),
         target_os = "linux",
         target_os = "android",
-        all(target_arch = "wasm32", target_feature = "atomics"),
+        all(target_family = "wasm", target_feature = "atomics"),
         target_os = "freebsd",
         target_os = "openbsd",
         target_os = "dragonfly",