diff --git a/src/lang/slovak.txt b/src/lang/slovak.txt
--- a/src/lang/slovak.txt
+++ b/src/lang/slovak.txt
@@ -2755,7 +2755,7 @@ STR_LAI_OBJECT_DESCRIPTION_COMPANY_OWNED_LAND                   :Spoločnosťou vlastnený pozemok
 STR_ABOUT_OPENTTD                                               :{WHITE}OpenTTD
 STR_ABOUT_ORIGINAL_COPYRIGHT                                    :{BLACK}Pôvodný copyright: {COPYRIGHT} 1995 Chris Sawyer, všetky práva vyhradené
 STR_ABOUT_VERSION                                               :{BLACK}OpenTTD verzia {REV}
-STR_ABOUT_COPYRIGHT_OPENTTD                                     :{BLACK}OpenTTD {COPYRIGHT} 2002-2017 team OpenTTD
+STR_ABOUT_COPYRIGHT_OPENTTD                                     :{BLACK}OpenTTD {COPYRIGHT} 2002-2018 team OpenTTD
 
 # Save/load game/scenario
 STR_SAVELOAD_SAVE_CAPTION                                       :{WHITE}Uložiť hru