diff --git a/src/drivers/boards/px4fmu-v1/px4fmu_init.c b/src/drivers/boards/px4fmu-v1/px4fmu_init.c
index 2b2b5ccd7a..b0e741017e 100644
--- a/src/drivers/boards/px4fmu-v1/px4fmu_init.c
+++ b/src/drivers/boards/px4fmu-v1/px4fmu_init.c
@@ -145,6 +145,7 @@ static struct spi_dev_s *spi3;
 
 #include <math.h>
 
+#if 0
 #ifdef __cplusplus
 __EXPORT int matherr(struct __exception *e)
 {
@@ -156,6 +157,7 @@ __EXPORT int matherr(struct exception *e)
 	return 1;
 }
 #endif
+#endif
 
 __EXPORT int nsh_archinitialize(void)
 {