diff --git a/reference/hrtime/hrtime-stopwatch/isrunning.xml b/reference/hrtime/hrtime-stopwatch/isrunning.xml
index aaab3f3840..a9da85b60c 100644
--- a/reference/hrtime/hrtime-stopwatch/isrunning.xml
+++ b/reference/hrtime/hrtime-stopwatch/isrunning.xml
@@ -27,7 +27,7 @@ Reveals whether the measurement was started.
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-  Returns &boolean; indicating whetehr the measurement is running. 
+  Returns &boolean; indicating whether the measurement is running. 
   </para>
  </refsect1>