--- a/security/manager/ssl/nsNSSCertValidity.cpp
+++ b/security/manager/ssl/nsNSSCertValidity.cpp
@@ -60,18 +60,18 @@ nsX509CertValidity::FormatTime(const PRT
                                nsAString& aFormattedTimeDate)
 {
   if (!mTimesInitialized)
     return NS_ERROR_FAILURE;
 
   PRExplodedTime explodedTime;
   PR_ExplodeTime(const_cast<PRTime&>(aTimeDate), aParamFn, &explodedTime);
   return mozilla::DateTimeFormat::FormatPRExplodedTime(kDateFormatLong,
-					                                             aTimeFormatSelector,
-					                                             &explodedTime, aFormattedTimeDate);
+                                                       aTimeFormatSelector,
+                                                       &explodedTime, aFormattedTimeDate);
 }
 
 NS_IMETHODIMP
 nsX509CertValidity::GetNotBeforeLocalTime(nsAString& aNotBeforeLocalTime)
 {
   return FormatTime(mNotBefore, PR_LocalTimeParameters,
                     kTimeFormatSeconds, aNotBeforeLocalTime);
 }