diff --git a/src/cmd/internal/objabi/funcid.go b/src/cmd/internal/objabi/funcid.go
index a30bc3fa05a..fe54eba6631 100644
--- a/src/cmd/internal/objabi/funcid.go
+++ b/src/cmd/internal/objabi/funcid.go
@@ -37,6 +37,7 @@ const (
 	FuncID_debugCallV1
 	FuncID_gopanic
 	FuncID_panicwrap
+	FuncID_handleAsyncEvents
 	FuncID_wrapper // any autogenerated code (hash/eq algorithms, method wrappers, etc.)
 )
 
@@ -82,6 +83,8 @@ func GetFuncID(name, file string) FuncID {
 		return FuncID_gopanic
 	case "runtime.panicwrap":
 		return FuncID_panicwrap
+	case "runtime.handleAsyncEvents":
+		return FuncID_handleAsyncEvents
 	}
 	if file == "<autogenerated>" {
 		return FuncID_wrapper
diff --git a/src/runtime/lock_js.go b/src/runtime/lock_js.go
index c038499f2a9..d08238ce3cf 100644
--- a/src/runtime/lock_js.go
+++ b/src/runtime/lock_js.go
@@ -149,18 +149,20 @@ var returnedEventHandler *g
 func init() {
 	// At the toplevel we need an extra goroutine that handles asynchronous events.
 	initg := getg()
-	go func() {
-		returnedEventHandler = getg()
-		goready(initg, 1)
-
-		gopark(nil, nil, waitReasonZero, traceEvNone, 1)
-		returnedEventHandler = nil
-
-		pause(getcallersp() - 16)
-	}()
+	go handleAsyncEvents(initg)
 	gopark(nil, nil, waitReasonZero, traceEvNone, 1)
 }
 
+func handleAsyncEvents(initg *g) {
+	returnedEventHandler = getg()
+	goready(initg, 1)
+
+	gopark(nil, nil, waitReasonZero, traceEvNone, 1)
+	returnedEventHandler = nil
+
+	pause(getcallersp() - 16)
+}
+
 // beforeIdle gets called by the scheduler if no goroutine is awake.
 // We resume the event handler (if available) which will pause the execution.
 func beforeIdle() bool {
diff --git a/src/runtime/symtab.go b/src/runtime/symtab.go
index 367e06003ae..8296a8590db 100644
--- a/src/runtime/symtab.go
+++ b/src/runtime/symtab.go
@@ -253,6 +253,7 @@ const (
 	funcID_debugCallV1
 	funcID_gopanic
 	funcID_panicwrap
+	funcID_handleAsyncEvents
 	funcID_wrapper // any autogenerated code (hash/eq algorithms, method wrappers, etc.)
 )
 
diff --git a/src/runtime/traceback.go b/src/runtime/traceback.go
index ef48c9fa1f9..5153390f1db 100644
--- a/src/runtime/traceback.go
+++ b/src/runtime/traceback.go
@@ -997,8 +997,8 @@ func topofstack(f funcInfo, g0 bool) bool {
 
 // isSystemGoroutine reports whether the goroutine g must be omitted
 // in stack dumps and deadlock detector. This is any goroutine that
-// starts at a runtime.* entry point, except for runtime.main and
-// sometimes runtime.runfinq.
+// starts at a runtime.* entry point, except for runtime.main,
+// runtime.handleAsyncEvents (wasm only) and sometimes runtime.runfinq.
 //
 // If fixed is true, any goroutine that can vary between user and
 // system (that is, the finalizer goroutine) is considered a user
@@ -1009,7 +1009,7 @@ func isSystemGoroutine(gp *g, fixed bool) bool {
 	if !f.valid() {
 		return false
 	}
-	if f.funcID == funcID_runtime_main {
+	if f.funcID == funcID_runtime_main || f.funcID == funcID_handleAsyncEvents {
 		return false
 	}
 	if f.funcID == funcID_runfinq {