diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2f36984..11c9361 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -57,6 +57,9 @@ file( STRINGS "${PROJECT_SOURCE_DIR}/config/CONFIG_QNX_RESMGR_SINGLE_THREAD"
 file( STRINGS "${PROJECT_SOURCE_DIR}/config/CONFIG_QNX_RESMGR_THREAD_POOL"
     CONFIG_QNX_RESMGR_THREAD_POOL )
 
+file( STRINGS "${PROJECT_SOURCE_DIR}/config/CONFIG_IRQ_SCHED_PRIORITY_BOOST"
+    CONFIG_IRQ_SCHED_PRIORITY_BOOST )
+
 add_compile_options( -Wall )
 
 add_compile_definitions( PROGRAM_VERSION="${PROGRAM_VERSION}" )
@@ -75,6 +78,9 @@ add_compile_definitions(
 add_compile_definitions(
     CONFIG_QNX_RESMGR_THREAD_POOL=${CONFIG_QNX_RESMGR_THREAD_POOL} )
 
+add_compile_definitions(
+    CONFIG_IRQ_SCHED_PRIORITY_BOOST=${CONFIG_IRQ_SCHED_PRIORITY_BOOST} )
+
 add_compile_definitions( DEVCANLINUX_SYSLOG=1 )
 add_compile_definitions( DEVCANLINUX_STDERR=1 )
 
@@ -86,11 +92,6 @@ project( dev-can-linux
          VERSION ${PROGRAM_VERSION}
          LANGUAGES C CXX )
 
-set( IRQ_SCHED_PRIORITY_BOOST "20" CACHE STRING
-    "Schedule priority of transmission and interrupt processing" )
-
-add_compile_definitions( IRQ_SCHED_PRIORITY_BOOST=${IRQ_SCHED_PRIORITY_BOOST} )
-
 set( SSH_PORT "6022" CACHE STRING "SSH port number" )
 
 include( CodeCoverageProfiler )
diff --git a/Makefile b/Makefile
index 6a1c325..103fea4 100644
--- a/Makefile
+++ b/Makefile
@@ -79,6 +79,7 @@ CCFLAGS += -DCONFIG_QNX_INTERRUPT_MASK_ISR=`cat "config/CONFIG_QNX_INTERRUPT_MAS
 CCFLAGS += -DCONFIG_QNX_INTERRUPT_MASK_PULSE=`cat "config/CONFIG_QNX_INTERRUPT_MASK_PULSE"`
 CCFLAGS += -DCONFIG_QNX_RESMGR_SINGLE_THREAD=`cat "config/CONFIG_QNX_RESMGR_SINGLE_THREAD"`
 CCFLAGS += -DCONFIG_QNX_RESMGR_THREAD_POOL=`cat "config/CONFIG_QNX_RESMGR_THREAD_POOL"`
+CCFLAGS += -DCONFIG_IRQ_SCHED_PRIORITY_BOOST=`cat "config/CONFIG_IRQ_SCHED_PRIORITY_BOOST"`
 
 #
 # Linux Kernel configuration macros
diff --git a/config/CONFIG_IRQ_SCHED_PRIORITY_BOOST b/config/CONFIG_IRQ_SCHED_PRIORITY_BOOST
new file mode 100644
index 0000000..209e3ef
--- /dev/null
+++ b/config/CONFIG_IRQ_SCHED_PRIORITY_BOOST
@@ -0,0 +1 @@
+20
diff --git a/src/interrupt.c b/src/interrupt.c
index 1c6cff0..3000d29 100644
--- a/src/interrupt.c
+++ b/src/interrupt.c
@@ -130,7 +130,7 @@ int request_threaded_irq(unsigned int irq, irq_handler_t handler,
         terminate_event.sigev_coid = coid;
         terminate_event.sigev_code = 0; // not needed for termination
         terminate_event.sigev_priority =
-            param.sched_priority + IRQ_SCHED_PRIORITY_BOOST;
+            param.sched_priority + CONFIG_IRQ_SCHED_PRIORITY_BOOST;
     }
 
     irq_group_t* group = irq_to_group_map[irq];
@@ -181,7 +181,7 @@ int request_threaded_irq(unsigned int irq, irq_handler_t handler,
         irq_attach[k].event.sigev_coid = coid;
         irq_attach[k].event.sigev_code = k;
         irq_attach[k].event.sigev_priority =
-            param.sched_priority + IRQ_SCHED_PRIORITY_BOOST;
+            param.sched_priority + CONFIG_IRQ_SCHED_PRIORITY_BOOST;
 
         irq_attach[k].irq = group->irq[i];
         irq_attach[k].irq_entry = i;
diff --git a/src/main.c b/src/main.c
index 01f27c2..9bf9ceb 100644
--- a/src/main.c
+++ b/src/main.c
@@ -590,7 +590,7 @@ int main (int argc, char* argv[]) {
 
     pthread_attr_setinheritsched(&irq_thread_attr, PTHREAD_EXPLICIT_SCHED);
 
-    param.sched_priority += IRQ_SCHED_PRIORITY_BOOST;
+    param.sched_priority += CONFIG_IRQ_SCHED_PRIORITY_BOOST;
     pthread_attr_setschedparam(&irq_thread_attr, &param);
 
     pthread_create(&irq_thread, &irq_thread_attr, &irq_loop, NULL);
diff --git a/src/prints.c b/src/prints.c
index 35c926c..4c5f0f8 100644
--- a/src/prints.c
+++ b/src/prints.c
@@ -53,6 +53,8 @@ void print_configs (void) {
             CONFIG_QNX_RESMGR_SINGLE_THREAD);
     printf("CONFIG_QNX_RESMGR_THREAD_POOL=%d\n",
             CONFIG_QNX_RESMGR_THREAD_POOL);
+    printf("CONFIG_IRQ_SCHED_PRIORITY_BOOST=%d\n",
+            CONFIG_IRQ_SCHED_PRIORITY_BOOST);
 
     return;
 }
diff --git a/src/session.c b/src/session.c
index 5b09c54..7c5b41f 100644
--- a/src/session.c
+++ b/src/session.c
@@ -92,7 +92,7 @@ create_device_session (struct net_device* dev, const queue_attr_t* tx_attr) {
     pthread_attr_setinheritsched( &new_device->tx_thread_attr,
             PTHREAD_EXPLICIT_SCHED );
 
-    param.sched_priority += IRQ_SCHED_PRIORITY_BOOST;
+    param.sched_priority += CONFIG_IRQ_SCHED_PRIORITY_BOOST;
     pthread_attr_setschedparam(&new_device->tx_thread_attr, &param);
 
     pthread_create( &new_device->tx_thread, &new_device->tx_thread_attr,