diff --git a/src/h2load.cc b/src/h2load.cc
index 4eb65ebb..07a2888c 100644
--- a/src/h2load.cc
+++ b/src/h2load.cc
@@ -143,10 +143,8 @@ void readcb(struct ev_loop *loop, ev_io *w, int revents) {
     client->fail();
     return;
   }
-  if (ev_is_active(&client->wev)) {
-    writecb(loop, &client->wev, revents);
-    // client->disconnect() and client->fail() may be called
-  }
+  writecb(loop, &client->wev, revents);
+  // client->disconnect() and client->fail() may be called
 }
 } // namespace
 
diff --git a/src/shrpx_client_handler.cc b/src/shrpx_client_handler.cc
index 04702200..c8065bb4 100644
--- a/src/shrpx_client_handler.cc
+++ b/src/shrpx_client_handler.cc
@@ -81,11 +81,9 @@ void readcb(struct ev_loop *loop, ev_io *w, int revents) {
     delete handler;
     return;
   }
-  if (ev_is_active(handler->get_wev())) {
-    if (handler->do_write() != 0) {
-      delete handler;
-      return;
-    }
+  if (handler->do_write() != 0) {
+    delete handler;
+    return;
   }
 }
 } // namespace
diff --git a/src/shrpx_http2_session.cc b/src/shrpx_http2_session.cc
index 41732f5e..6649eac2 100644
--- a/src/shrpx_http2_session.cc
+++ b/src/shrpx_http2_session.cc
@@ -116,12 +116,11 @@ void readcb(struct ev_loop *loop, ev_io *w, int revents) {
     return;
   }
   http2session->connection_alive();
-  if (ev_is_active(http2session->get_wev())) {
-    rv = http2session->do_write();
-    if (rv != 0) {
-      http2session->disconnect(http2session->should_hard_fail());
-      return;
-    }
+
+  rv = http2session->do_write();
+  if (rv != 0) {
+    http2session->disconnect(http2session->should_hard_fail());
+    return;
   }
 }
 } // namespace