diff --git a/CMakeLists.txt b/CMakeLists.txt
index 75bd07a2..63c40422 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -80,6 +80,8 @@ option(NETOPEER2_LIB_TESTS "Include server tests in netopeer2 library" ON)
 set(SSH_AUTHORIZED_KEYS_FORMAT "%h/.ssh/authorized_keys" CACHE STRING "sshd-like pattern (with '%h', '%u', '%U') for determining path to users' SSH authorized_keys file.")
 set(THREAD_COUNT 3 CACHE STRING "Number of threads accepting new sessions and handling requests")
 set(POLL_IO_TIMEOUT 10 CACHE STRING "Timeout in milliseconds of polling sessions for new data. It is also used for synchronization of low level IO such as sending a reply while a notification is being sent")
+set(PS_BACKOFF_SLEEP 30 CACHE STRING "Timeout in milliseconds of polling sessions backoff sleep")
+
 set(YANG_MODULE_DIR "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_DATADIR}/yang/modules/netopeer2" CACHE STRING "Directory where to copy the YANG modules to")
 set(DATA_DIR "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_DATADIR}/netopeer2" CACHE STRING "Directory with shared netopeer2 data")
 
diff --git a/src/config.h.in b/src/config.h.in
index 19273d38..96f921f7 100644
--- a/src/config.h.in
+++ b/src/config.h.in
@@ -59,7 +59,7 @@
 /** @brief Timeout for PS structure accessing in
  * case there is too much contention (ms).
  */
-#define NP2SRV_PS_BACKOFF_SLEEP 30
+#define NP2SRV_PS_BACKOFF_SLEEP @PS_BACKOFF_SLEEP@
 
 /** @brief Sleep time when terminating sub-ntf subscriptions
  * to give a chance for another threads to wake up (ms).