diff --git a/src/include/switch_apr.h b/src/include/switch_apr.h
index ffb0cc5a49..d7bd63d896 100644
--- a/src/include/switch_apr.h
+++ b/src/include/switch_apr.h
@@ -1053,6 +1053,9 @@ DoxyDefine(apr_status_t switch_poll(switch_pollfd_t *aprset, apr_int32_t numsock
  /** number of microseconds since 00:00:00 january 1, 1970 UTC */
 typedef apr_time_t switch_time_t;
 
+ /** number of microseconds in the interval */
+typedef apr_interval_time_t switch_interval_time_t;
+
 /**
  * a structure similar to ANSI struct tm with the following differences:
  *  - tm_usec isn't an ANSI field
diff --git a/src/include/switch_utils.h b/src/include/switch_utils.h
index dd6957df34..d8b9774af0 100644
--- a/src/include/switch_utils.h
+++ b/src/include/switch_utils.h
@@ -169,7 +169,7 @@ switch_mutex_unlock(obj->flag_mutex);
 #ifdef HAVE_USLEEP
 #define switch_yield(ms) usleep(ms);
 #else
-#define switch_yield(ms) apr_sleep(ms * 10); //apr_thread_yield();
+#define switch_yield(ms) apr_sleep((ms) * 10); //apr_thread_yield();
 #endif
 
 /*!
diff --git a/src/mod/timers/mod_softtimer/mod_softtimer.c b/src/mod/timers/mod_softtimer/mod_softtimer.c
index 2b0d28d5a0..dc5fc130b3 100644
--- a/src/mod/timers/mod_softtimer/mod_softtimer.c
+++ b/src/mod/timers/mod_softtimer/mod_softtimer.c
@@ -38,7 +38,7 @@ static struct {
 	int32_t RUNNING;
 	switch_mutex_t *mutex;
 	uint32_t timer_milliseconds;
-	uint32_t timer_microseconds;
+	switch_interval_time_t timer_microseconds;
 } globals;
 
 static const char modname[] = "mod_softtimer";