diff --git a/core/AmSession.cpp b/core/AmSession.cpp
index b89a1bed..ac8ad833 100644
--- a/core/AmSession.cpp
+++ b/core/AmSession.cpp
@@ -53,10 +53,10 @@
 #include <termios.h>
 #include <sys/ioctl.h>
 
-volatile unsigned int AmSession::session_num = 0;
+unsigned int AmSession::session_num = 0;
 AmMutex AmSession::session_num_mut;
-volatile unsigned int AmSession::max_session_num = 0;
-volatile unsigned long long AmSession::avg_session_num = 0;
+unsigned int AmSession::max_session_num = 0;
+unsigned long long AmSession::avg_session_num = 0;
 
 struct timeval get_now() {
   struct timeval res;
diff --git a/core/AmSession.h b/core/AmSession.h
index 1b910da5..ddac24b8 100644
--- a/core/AmSession.h
+++ b/core/AmSession.h
@@ -115,9 +115,9 @@ private:
   static void session_started();
   static void session_stopped();
 
-  static volatile unsigned int session_num;
-  static volatile unsigned int max_session_num;
-  static volatile unsigned long long avg_session_num;
+  static unsigned int session_num;
+  static unsigned int max_session_num;
+  static unsigned long long avg_session_num;
   static AmMutex session_num_mut;
 
   friend class AmMediaProcessor;