diff --git a/net-p2p/qbittorrent/patches/qbittorrent-3.3.11.patchset b/net-p2p/qbittorrent/patches/qbittorrent-3.3.11.patchset
new file mode 100644
index 000000000..181726e9e
--- /dev/null
+++ b/net-p2p/qbittorrent/patches/qbittorrent-3.3.11.patchset
@@ -0,0 +1,49 @@
+From 12906e1526d1efdec43624c7d86b7a1042687a41 Mon Sep 17 00:00:00 2001
+From: Sergei Reznikov <diver@gelios.net>
+Date: Mon, 30 Nov 2015 11:40:43 +0300
+Subject: Disable QtLockedFile on Haiku
+
+
+diff --git a/src/app/qtsingleapplication/qtlockedfile_unix.cpp b/src/app/qtsingleapplication/qtlockedfile_unix.cpp
+index 976c1b9..65813b8 100644
+--- a/src/app/qtsingleapplication/qtlockedfile_unix.cpp
++++ b/src/app/qtsingleapplication/qtlockedfile_unix.cpp
+@@ -61,6 +61,7 @@ bool QtLockedFile::lock(LockMode mode, bool block)
+     if (m_lock_mode != NoLock)
+         unlock();
+ 
++#ifndef __HAIKU__
+     struct flock fl;
+     fl.l_whence = SEEK_SET;
+     fl.l_start = 0;
+@@ -75,7 +76,7 @@ bool QtLockedFile::lock(LockMode mode, bool block)
+         return false;
+     }
+ 
+-    
++#endif
+     m_lock_mode = mode;
+     return true;
+ }
+@@ -91,6 +92,8 @@ bool QtLockedFile::unlock()
+     if (!isLocked())
+         return true;
+ 
++#ifndef __HAIKU__
++
+     struct flock fl;
+     fl.l_whence = SEEK_SET;
+     fl.l_start = 0;
+@@ -102,7 +105,8 @@ bool QtLockedFile::unlock()
+         qWarning("QtLockedFile::lock(): fcntl: %s", strerror(errno));
+         return false;
+     }
+-    
++
++#endif
+     m_lock_mode = NoLock;
+     return true;
+ }
+-- 
+2.2.2
+