diff --git a/posix/JackPosixThread.cpp b/posix/JackPosixThread.cpp
index 821cad2e..6e872736 100644
--- a/posix/JackPosixThread.cpp
+++ b/posix/JackPosixThread.cpp
@@ -261,13 +261,12 @@ void JackPosixThread::Terminate()
     pthread_exit(0);
 }
 
-void ThreadExit()
+EXPORT void ThreadExit()
 {
     jack_log("ThreadExit");
     pthread_exit(0);
 }
 
-
 } // end of namespace
 
 EXPORT bool jack_tls_allocate_key(jack_tls_key *key_ptr)
diff --git a/posix/JackPosixThread.h b/posix/JackPosixThread.h
index 00cdb57f..8bd3df4e 100644
--- a/posix/JackPosixThread.h
+++ b/posix/JackPosixThread.h
@@ -71,7 +71,7 @@ class EXPORT JackPosixThread : public detail::JackThreadInterface
         static int KillImp(pthread_t thread);
 };
 
-void ThreadExit();
+EXPORT void ThreadExit();
 
 } // end of namespace
 
diff --git a/windows/JackWinThread.cpp b/windows/JackWinThread.cpp
index b9e064b4..a27afee4 100644
--- a/windows/JackWinThread.cpp
+++ b/windows/JackWinThread.cpp
@@ -228,7 +228,7 @@ void JackWinThread::Terminate()
     ExitThread(0);
 }
 
-void ThreadExit()
+EXPORT void ThreadExit()
 {
     jack_log("ThreadExit");
     ExitThread(0);
diff --git a/windows/JackWinThread.h b/windows/JackWinThread.h
index a56968fd..797cd7df 100644
--- a/windows/JackWinThread.h
+++ b/windows/JackWinThread.h
@@ -71,7 +71,7 @@ class EXPORT JackWinThread : public detail::JackThreadInterface
 
 };
 
-void ThreadExit();
+EXPORT void ThreadExit();
 
 } // end of namespace