diff --git a/src/drivers/pps_capture/CMakeLists.txt b/src/drivers/pps_capture/CMakeLists.txt
index 46047e8c2f..cf613393f6 100644
--- a/src/drivers/pps_capture/CMakeLists.txt
+++ b/src/drivers/pps_capture/CMakeLists.txt
@@ -30,9 +30,18 @@
 # POSSIBILITY OF SUCH DAMAGE.
 #
 ############################################################################
+
+set(PARAM_PREFIX PWM_MAIN)
+
+if(CONFIG_BOARD_IO)
+	set(PARAM_PREFIX PWM_AUX)
+endif()
+
 px4_add_module(
 	MODULE drivers__pps_capture
 	MAIN pps_capture
+	COMPILE_FLAGS
+		-DPARAM_PREFIX="${PARAM_PREFIX}"
 	SRCS
 		PPSCapture.cpp
 	)
diff --git a/src/drivers/pps_capture/PPSCapture.cpp b/src/drivers/pps_capture/PPSCapture.cpp
index 997065ce3e..aeb8eb0e8d 100644
--- a/src/drivers/pps_capture/PPSCapture.cpp
+++ b/src/drivers/pps_capture/PPSCapture.cpp
@@ -43,12 +43,6 @@
 #include <board_config.h>
 #include <parameters/param.h>
 
-#ifdef BOARD_WITH_IO
-# define PARAM_PREFIX "PWM_AUX"
-#else
-# define PARAM_PREFIX "PWM_MAIN"
-#endif
-
 PPSCapture::PPSCapture() :
 	ScheduledWorkItem(MODULE_NAME, px4::wq_configurations::hp_default)
 {