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-rw-r--r--tmk_core/common/wait.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/tmk_core/common/wait.h b/tmk_core/common/wait.h
index a77840bcef..9aed372b7f 100644
--- a/tmk_core/common/wait.h
+++ b/tmk_core/common/wait.h
@@ -13,8 +13,8 @@ extern "C" {
# define wait_us(us) _delay_us(us)
#elif defined PROTOCOL_CHIBIOS
# include "ch.h"
-# define wait_ms(ms) chThdSleepMilliseconds(ms)
-# define wait_us(us) chThdSleepMicroseconds(us)
+# define wait_ms(ms) do { if (ms != 0) { chThdSleepMilliseconds(ms); } else { chThdSleepMicroseconds(1); } } while (0)
+# define wait_us(us) do { if (us != 0) { chThdSleepMicroseconds(us); } else { chThdSleepMicroseconds(1); } } while (0)
#elif defined PROTOCOL_ARM_ATSAM
# include "clks.h"
# define wait_ms(ms) CLK_delay_ms(ms)