diff --git a/vtest/vtest.h b/vtest/vtest.h
index 43f030e..3e05819 100644
--- a/vtest/vtest.h
+++ b/vtest/vtest.h
@@ -42,7 +42,9 @@ struct vtest_input {
    int (*read)(struct vtest_input *input, void *buf, int size);
 };
 
-int vtest_init_renderer(int ctx_flags, const char *render_device);
+int vtest_init_renderer(bool multi_clients,
+                        int ctx_flags,
+                        const char *render_device);
 void vtest_cleanup_renderer(void);
 
 int vtest_create_context(struct vtest_input *input, int out_fd,
diff --git a/vtest/vtest_fuzzer.c b/vtest/vtest_fuzzer.c
index 9fe0958..8a909b5 100644
--- a/vtest/vtest_fuzzer.c
+++ b/vtest/vtest_fuzzer.c
@@ -105,7 +105,7 @@ static void vtest_fuzzer_run_renderer(int out_fd, struct vtest_input *input,
             break;
          }
 
-         ret = vtest_init_renderer(ctx_flags, NULL);
+         ret = vtest_init_renderer(false, ctx_flags, NULL);
          if (ret >= 0) {
             ret = vtest_create_context(input, out_fd, header[0], &context);
          }
diff --git a/vtest/vtest_renderer.c b/vtest/vtest_renderer.c
index 6e456e8..518b510 100644
--- a/vtest/vtest_renderer.c
+++ b/vtest/vtest_renderer.c
@@ -75,6 +75,7 @@ struct vtest_context {
 
 struct vtest_renderer {
    const char *rendernode_name;
+   bool multi_clients;
 
    uint32_t max_length;
 
@@ -291,7 +292,9 @@ int vtest_buf_read(struct vtest_input *input, void *buf, int size)
    return size;
 }
 
-int vtest_init_renderer(int ctx_flags, const char *render_device)
+int vtest_init_renderer(bool multi_clients,
+                        int ctx_flags,
+                        const char *render_device)
 {
    int ret;
 
@@ -307,6 +310,8 @@ int vtest_init_renderer(int ctx_flags, const char *render_device)
       return -1;
    }
 
+   renderer.multi_clients = multi_clients;
+
    return 0;
 }
 
diff --git a/vtest/vtest_server.c b/vtest/vtest_server.c
index 835c359..5a2eec8 100644
--- a/vtest/vtest_server.c
+++ b/vtest/vtest_server.c
@@ -559,7 +559,9 @@ static void vtest_server_run(void)
       /* init renderer after the first active client is added */
       is_empty = LIST_IS_EMPTY(&server.active_clients);
       if (was_empty && !is_empty) {
-         int ret = vtest_init_renderer(server.ctx_flags, server.render_device);
+         int ret = vtest_init_renderer(server.multi_clients,
+                                       server.ctx_flags,
+                                       server.render_device);
          if (ret) {
             vtest_server_inactivate_clients();
             run = false;