diff --git a/util.c b/util.c
index 635a090..586dcbd 100644
--- a/util.c
+++ b/util.c
@@ -119,13 +119,11 @@ UTI_TimevalToDouble(struct timeval *tv)
 void
 UTI_DoubleToTimeval(double a, struct timeval *b)
 {
-  long int_part;
   double frac_part;
-  int_part = (long)(a);
-  frac_part = 1.0e6 * (a - (double)(int_part));
-  frac_part = frac_part > 0 ? frac_part + 0.5 : frac_part - 0.5;
-  b->tv_sec = int_part;
-  b->tv_usec = (long)frac_part;
+
+  b->tv_sec = a;
+  frac_part = 1.0e6 * (a - b->tv_sec);
+  b->tv_usec = frac_part > 0 ? frac_part + 0.5 : frac_part - 0.5;
   UTI_NormaliseTimeval(b);
 }