diff --git a/plugins/psgi/psgi_loader.c b/plugins/psgi/psgi_loader.c
index fefbcb30..1bc0c23c 100644
--- a/plugins/psgi/psgi_loader.c
+++ b/plugins/psgi/psgi_loader.c
@@ -437,13 +437,7 @@ int init_psgi_app(struct wsgi_request *wsgi_req, char *app, uint16_t app_len, Pe
 	wi->error = uperl.tmp_error_stash;
 	wi->responder0 = uperl.tmp_stream_responder;
 
-	// check if we need to emulate fork() COW
-        if (uwsgi.mywid == 0) {
-                for(i=1;i<=uwsgi.numproc;i++) {
-                        memcpy(&uwsgi.workers[i].apps[id], &uwsgi.workers[0].apps[id], sizeof(struct uwsgi_app));
-                        uwsgi.workers[i].apps_cnt = uwsgi_apps_cnt;
-                }
-        }
+	uwsgi_emulate_cow_for_apps(id);
 
 
 	// restore context if required
diff --git a/plugins/python/pyloader.c b/plugins/python/pyloader.c
index 5d220890..ebc7ce54 100644
--- a/plugins/python/pyloader.c
+++ b/plugins/python/pyloader.c
@@ -418,13 +418,8 @@ int init_uwsgi_app(int loader, void *arg1, struct wsgi_request *wsgi_req, PyThre
 		}
 	}
 
-	// check if we need to emulate fork() COW
-	if (uwsgi.mywid == 0) {
-		for(i=1;i<=uwsgi.numproc;i++) {
-			memcpy(&uwsgi.workers[i].apps[id], &uwsgi.workers[0].apps[id], sizeof(struct uwsgi_app));
-			uwsgi.workers[i].apps_cnt = uwsgi_apps_cnt;
-		}
-	}
+	// emulate COW
+	uwsgi_emulate_cow_for_apps(id);
 
 	return id;
 
diff --git a/plugins/rack/rack_plugin.c b/plugins/rack/rack_plugin.c
index c62aef07..6f1c92dc 100644
--- a/plugins/rack/rack_plugin.c
+++ b/plugins/rack/rack_plugin.c
@@ -385,6 +385,9 @@ ready:
 	struct uwsgi_app *ua = uwsgi_add_app(ur.app_id, 7, (char*)"", 0, NULL, NULL);
 	ua->started_at = now;
 	ua->startup_time = uwsgi_now() - now;
+
+	uwsgi_emulate_cow_for_apps(ur.app_id);
+	
 	if (ur.gc_freq <= 1) {
         	uwsgi_log("RACK app %d loaded in %d seconds at %p (GC frequency: AGGRESSIVE)\n", ur.app_id, (int) ua->startup_time, ur.call);
 	}
diff --git a/utils.c b/utils.c
index a086a8a2..ad4d631e 100644
--- a/utils.c
+++ b/utils.c
@@ -4008,6 +4008,18 @@ int uwsgi_file_to_string_list(char *filename, struct uwsgi_string_list **list) {
 	return 0;
 }
 
+void uwsgi_emulate_cow_for_apps(int id) {
+	int i;
+	// check if we need to emulate fork() COW
+        if (uwsgi.mywid == 0) {
+                for(i=1;i<=uwsgi.numproc;i++) {
+                        memcpy(&uwsgi.workers[i].apps[id], &uwsgi.workers[0].apps[id], sizeof(struct uwsgi_app));
+                        uwsgi.workers[i].apps_cnt = uwsgi_apps_cnt;
+                }
+        }
+}
+
+
 // in the future we will need to use the best clock source for each os/system
 time_t uwsgi_now() {
 	return time(NULL);
diff --git a/uwsgi.h b/uwsgi.h
index 863196fd..b87f5e60 100644
--- a/uwsgi.h
+++ b/uwsgi.h
@@ -2661,6 +2661,8 @@ void uwsgi_flush_logs(void);
 
 void uwsgi_register_cheaper_algo(char *, int(*) (void));
 
+void uwsgi_emulate_cow_for_apps(int);
+
 #ifdef UWSGI_AS_SHARED_LIBRARY
 int uwsgi_init(int, char **, char **);
 #endif