diff --git a/sycl/source/detail/event_impl.cpp b/sycl/source/detail/event_impl.cpp
index e261d67a21fc5..77856a2a4d9a1 100644
--- a/sycl/source/detail/event_impl.cpp
+++ b/sycl/source/detail/event_impl.cpp
@@ -117,10 +117,6 @@ void event_impl::setContextImpl(const ContextImplPtr &Context) {
   MIsContextInitialized = true;
 }
 
-event_impl::event_impl(std::optional<HostEventState> State)
-    : MIsInitialized(false), MHostEvent(State), MIsFlushed(true),
-      MState(State.value_or(HES_Complete)) {}
-
 event_impl::event_impl(RT::PiEvent Event, const context &SyclContext)
     : MIsContextInitialized(true), MEvent(Event),
       MContext(detail::getSyclObjImpl(SyclContext)), MHostEvent(false),
diff --git a/sycl/source/detail/event_impl.hpp b/sycl/source/detail/event_impl.hpp
index e13fa267d09d7..f542f9d20a25d 100644
--- a/sycl/source/detail/event_impl.hpp
+++ b/sycl/source/detail/event_impl.hpp
@@ -46,7 +46,9 @@ class event_impl {
   /// If the constructed SYCL event is waited on it will complete immediately.
   /// Normally constructs a host event, use std::nullopt to instead instantiate
   /// a device event.
-  event_impl(std::optional<HostEventState> State = HES_Complete);
+  event_impl(std::optional<HostEventState> State = HES_Complete)
+      : MIsInitialized(false), MHostEvent(State), MIsFlushed(true),
+        MState(State.value_or(HES_Complete)) {}
 
   /// Constructs an event instance from a plug-in event handle.
   ///