diff --git a/rbutil/rbutilqt/rbutil.ini b/rbutil/rbutilqt/rbutil.ini
index 983e1c9b2a..3600dd2f54 100644
--- a/rbutil/rbutilqt/rbutil.ini
+++ b/rbutil/rbutilqt/rbutil.ini
@@ -784,7 +784,8 @@ pt=portugues
 pt_BR=portugues-brasileiro
 ro=romaneste
 ru=russian
-sk=slovenscina
+sk=slovak
+sl=slovenscina
 sv=svenska
 th=thai
 tl=tagalog
diff --git a/tools/sapi_voice.vbs b/tools/sapi_voice.vbs
index 4593b791c4..db44ee99ab 100644
--- a/tools/sapi_voice.vbs
+++ b/tools/sapi_voice.vbs
@@ -356,6 +356,8 @@ Function LangIDs(ByRef sLanguage)
             LangIDs = Array(&h418)
         Case "russian"
             LangIDs = Array(&h419)
+        Case "slovak"
+            LangIDs = Array(&h41B)
         Case "slovenscina"
             LangIDs = Array(&h424)
         Case "srpski"