diff --git a/boards/matek/h743-slim/src/board_config.h b/boards/matek/h743-slim/src/board_config.h
index 9653dbb43f..f977a2e8dd 100644
--- a/boards/matek/h743-slim/src/board_config.h
+++ b/boards/matek/h743-slim/src/board_config.h
@@ -111,8 +111,8 @@
 
 /* PWM
  */
-#define DIRECT_PWM_OUTPUT_CHANNELS   10
-#define DIRECT_INPUT_TIMER_CHANNELS  10
+#define DIRECT_PWM_OUTPUT_CHANNELS   12
+#define DIRECT_INPUT_TIMER_CHANNELS  12
 
 #define BOARD_HAS_PWM  DIRECT_PWM_OUTPUT_CHANNELS
 
diff --git a/boards/matek/h743-slim/src/timer_config.cpp b/boards/matek/h743-slim/src/timer_config.cpp
index 3f1ac93e6f..e862bf2a7a 100644
--- a/boards/matek/h743-slim/src/timer_config.cpp
+++ b/boards/matek/h743-slim/src/timer_config.cpp
@@ -49,10 +49,10 @@ constexpr timer_io_channels_t timer_io_channels[MAX_TIMER_IO_CHANNELS] = {
 	initIOTimerChannel(io_timers, {Timer::Timer5, Timer::Channel4}, {GPIO::PortA, GPIO::Pin3}),
 	initIOTimerChannel(io_timers, {Timer::Timer4, Timer::Channel1}, {GPIO::PortD, GPIO::Pin12}),
 	initIOTimerChannel(io_timers, {Timer::Timer4, Timer::Channel2}, {GPIO::PortD, GPIO::Pin13}),
+	initIOTimerChannel(io_timers, {Timer::Timer4, Timer::Channel3}, {GPIO::PortD, GPIO::Pin14}),
+	initIOTimerChannel(io_timers, {Timer::Timer4, Timer::Channel4}, {GPIO::PortD, GPIO::Pin15}),
 	initIOTimerChannel(io_timers, {Timer::Timer15, Timer::Channel1}, {GPIO::PortE, GPIO::Pin5}),
 	initIOTimerChannel(io_timers, {Timer::Timer15, Timer::Channel2}, {GPIO::PortE, GPIO::Pin6}),
-	// initIOTimerChannel(io_timers, {Timer::Timer4, Timer::Channel3}, {GPIO::PortD, GPIO::Pin14}),
-	// initIOTimerChannel(io_timers, {Timer::Timer4, Timer::Channel4}, {GPIO::PortD, GPIO::Pin15}),
 };
 
 constexpr io_timers_channel_mapping_t io_timers_channel_mapping =