1 files changed, 2 insertions, 2 deletions
diff --git a/testex/STM32/STM32L4xx/I2C-LIS3MLD/main.c b/testex/STM32/STM32L4xx/I2C-LIS3MLD/main.c
index fa767e48a..27584f965 100644
--- a/testex/STM32/STM32L4xx/I2C-LIS3MLD/main.c
+++ b/testex/STM32/STM32L4xx/I2C-LIS3MLD/main.c
@@ -183,9 +183,9 @@ int main(void) {
   chSysInit();
 
   palSetLineMode(LINE_ARD_D15, PAL_MODE_ALTERNATE(4) |
-                 PAL_STM32_OSPEED_HIGH);
+                 PAL_STM32_OSPEED_HIGH | PAL_STM32_OTYPE_OPENDRAIN);
   palSetLineMode(LINE_ARD_D14, PAL_MODE_ALTERNATE(4) |
-                 PAL_STM32_OSPEED_HIGH);
+                 PAL_STM32_OSPEED_HIGH | PAL_STM32_OTYPE_OPENDRAIN);
 
   /*
    * Activates the serial driver 2 using the driver default configuration.