diff --git a/bitbake/lib/bb/command.py b/bitbake/lib/bb/command.py
index 1799f1cc3c..73aaca0474 100644
--- a/bitbake/lib/bb/command.py
+++ b/bitbake/lib/bb/command.py
@@ -179,13 +179,6 @@ class CommandsSync:
         """
         return bb.utils.cpu_count()
 
-    def triggerEvent(self, command, params):
-        """
-        Trigger a certain event
-        """
-        event = params[0]
-        bb.event.fire(eval(event), command.cooker.configuration.data)
-
 class CommandsAsync:
     """
     A class of asynchronous commands
@@ -359,3 +352,13 @@ class CommandsAsync:
         command.cooker.parseConfigurationFiles(prefiles, postfiles)
         command.finishAsyncCommand()
     parseConfigurationFiles.needcache = False
+
+    def triggerEvent(self, command, params):
+        """
+        Trigger a certain event
+        """
+        event = params[0]
+        bb.event.fire(eval(event), command.cooker.configuration.data)
+        command.currentAsyncCommand = None
+    triggerEvent.needcache = False
+