diff --git a/lib/roken/roken.h.in b/lib/roken/roken.h.in
index 2cf596c4f..6e76b3f63 100644
--- a/lib/roken/roken.h.in
+++ b/lib/roken/roken.h.in
@@ -969,6 +969,9 @@ gai_strerror(int);
 ROKEN_LIB_FUNCTION unsigned int ROKEN_LIB_CALL
 sleep(unsigned int seconds);
 
+ROKEN_LIB_FUNCTION unsigned int ROKEN_LIB_CALL
+usleep(unsigned int useconds);
+
 #endif
 
 ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
diff --git a/lib/roken/sleep.c b/lib/roken/sleep.c
index 4773f7c02..a2599b90e 100644
--- a/lib/roken/sleep.c
+++ b/lib/roken/sleep.c
@@ -1,5 +1,5 @@
 /***********************************************************************
- * Copyright (c) 2009, Secure Endpoints Inc.
+ * Copyright (c) 2009, 2014, Secure Endpoints Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -40,6 +40,16 @@
 ROKEN_LIB_FUNCTION unsigned int ROKEN_LIB_CALL
 sleep(unsigned int seconds)
 {
-    SleepEx(1000 * (DWORD) seconds, FALSE);
+    if (SleepEx(1000 * (DWORD) seconds, FALSE) != 0)
+	return -1;
+    return 0;
+}
+
+/* We can only sleep in millisecond increments */
+ROKEN_LIB_FUNCTION unsigned int ROKEN_LIB_CALL
+usleep(unsigned int useconds)
+{
+    if (SleepEx((DWORD)(useconds / 1000), FALSE) != 0)
+	return -1;
     return 0;
 }