diff --git a/include/globalconstants.h b/include/globalconstants.h
index 8548f31..47ada3a 100644
--- a/include/globalconstants.h
+++ b/include/globalconstants.h
@@ -36,6 +36,7 @@ namespace GlobalConstants
     const unsigned int LANGUAGE_DA = 1 << 17;
     const unsigned int LANGUAGE_FI = 1 << 18;
     const unsigned int LANGUAGE_PT_BR = 1 << 19;
+    const unsigned int LANGUAGE_SK = 1 << 20;
 
     const std::vector<optionsStruct> LANGUAGES =
     {
@@ -58,7 +59,8 @@ namespace GlobalConstants
         { LANGUAGE_NO, "no", "Norwegian" , "no|nor|norwegian"      },
         { LANGUAGE_DA, "da", "Danish"    , "da|dan|danish"         },
         { LANGUAGE_FI, "fi", "Finnish"   , "fi|fin|finnish"        },
-        { LANGUAGE_PT_BR, "br", "Brazilian Portuguese", "br|pt_br|pt-br|ptbr|brazilian_portuguese" }
+        { LANGUAGE_PT_BR, "br", "Brazilian Portuguese", "br|pt_br|pt-br|ptbr|brazilian_portuguese" },
+        { LANGUAGE_SK, "sk", "Slovak"    , "sk|slk|slo|slovak"     }
     };
 
     // Platform constants