1 files changed, 2 insertions, 2 deletions
diff --git a/testex/STM32/STM32F4xx/I2C-LSM6DS0/main.c b/testex/STM32/STM32F4xx/I2C-LSM6DS0/main.c
index ef3510782..8c010c36d 100644
--- a/testex/STM32/STM32F4xx/I2C-LSM6DS0/main.c
+++ b/testex/STM32/STM32F4xx/I2C-LSM6DS0/main.c
@@ -295,9 +295,9 @@ int main(void) {
   chSysInit();
 
   palSetLineMode(LINE_ARD_D15, PAL_MODE_ALTERNATE(4) |
-                 PAL_STM32_OSPEED_HIGHEST);
+                 PAL_STM32_OSPEED_HIGHEST | PAL_STM32_OTYPE_OPENDRAIN);
   palSetLineMode(LINE_ARD_D14, PAL_MODE_ALTERNATE(4) |
-                 PAL_STM32_OSPEED_HIGHEST);
+                 PAL_STM32_OSPEED_HIGHEST | PAL_STM32_OTYPE_OPENDRAIN);
 
   /*
    * Activates the serial driver 2 using the driver default configuration.