diff --git a/demos/STM32/RT-STM32F072-DISCOVERY/mcuconf.h b/demos/STM32/RT-STM32F072-DISCOVERY/mcuconf.h
index ea247c7ab..367e04bf1 100644
--- a/demos/STM32/RT-STM32F072-DISCOVERY/mcuconf.h
+++ b/demos/STM32/RT-STM32F072-DISCOVERY/mcuconf.h
@@ -104,10 +104,12 @@
 #define STM32_GPT_USE_TIM1                  FALSE
 #define STM32_GPT_USE_TIM2                  FALSE
 #define STM32_GPT_USE_TIM3                  FALSE
+#define STM32_GPT_USE_TIM6                  FALSE
 #define STM32_GPT_USE_TIM14                 FALSE
 #define STM32_GPT_TIM1_IRQ_PRIORITY         2
 #define STM32_GPT_TIM2_IRQ_PRIORITY         2
 #define STM32_GPT_TIM3_IRQ_PRIORITY         2
+#define STM32_GPT_TIM6_IRQ_PRIORITY         2
 #define STM32_GPT_TIM14_IRQ_PRIORITY        2
 
 /*
diff --git a/demos/STM32/RT-STM32F072RB-NUCLEO/mcuconf.h b/demos/STM32/RT-STM32F072RB-NUCLEO/mcuconf.h
index 692650b7a..2624c1874 100644
--- a/demos/STM32/RT-STM32F072RB-NUCLEO/mcuconf.h
+++ b/demos/STM32/RT-STM32F072RB-NUCLEO/mcuconf.h
@@ -104,10 +104,12 @@
 #define STM32_GPT_USE_TIM1                  FALSE
 #define STM32_GPT_USE_TIM2                  FALSE
 #define STM32_GPT_USE_TIM3                  FALSE
+#define STM32_GPT_USE_TIM6                  FALSE
 #define STM32_GPT_USE_TIM14                 FALSE
 #define STM32_GPT_TIM1_IRQ_PRIORITY         2
 #define STM32_GPT_TIM2_IRQ_PRIORITY         2
 #define STM32_GPT_TIM3_IRQ_PRIORITY         2
+#define STM32_GPT_TIM6_IRQ_PRIORITY         2
 #define STM32_GPT_TIM14_IRQ_PRIORITY        2
 
 /*