diff --git a/languages/i18n/en.json b/languages/i18n/en.json
index 7f9e0336eb7..bb61c5a454f 100644
--- a/languages/i18n/en.json
+++ b/languages/i18n/en.json
@@ -2762,7 +2762,7 @@
 	"ipb-needreblock": "$1 is already blocked. Do you want to change the settings?",
 	"ipb-otherblocks-header": "Other {{PLURAL:$1|block|blocks}}",
 	"unblock-hideuser": "You cannot unblock this user, as their username has been hidden.",
-	"ipb_cant_unblock": "Error: Block ID $1 not found. It may have been unblocked already.",
+	"ipb_cant_unblock": "Error: Block for $1 not found. It may have been removed already.",
 	"ipb_blocked_as_range": "Error: The IP address $1 is not blocked directly and cannot be unblocked.\nIt is, however, blocked as part of the range $2, which can be unblocked.",
 	"ip_range_invalid": "Invalid IP address range.",
 	"ip_range_toolarge": "Range blocks larger than /$1 are not allowed.",
diff --git a/languages/i18n/qqq.json b/languages/i18n/qqq.json
index 1dfce651a2b..fbbfc624fc4 100644
--- a/languages/i18n/qqq.json
+++ b/languages/i18n/qqq.json
@@ -2977,7 +2977,7 @@
 	"ipb-needreblock": "Used in [[Special:Block]].\n* $1 - target username, can be used for GENDER support",
 	"ipb-otherblocks-header": "[[File:Special.Block with other blocks from GlobalBlocking and TorBlocks.png|thumb|Example]]\nUsed on [[Special:Block]] as header for other blocks, i.e. from GlobalBlocking or TorBlocks\n\nParameters:\n* $1 - number of blocks\nSee also:\n* {{msg-mw|Ipblocklist-otherblocks}}",
 	"unblock-hideuser": "{{doc-singularthey}}",
-	"ipb_cant_unblock": "Used as error message in [[Special:Unblock]]. Parameters:\n* $1 - block ID",
+	"ipb_cant_unblock": "Used as error message in [[Special:Unblock]]. Parameters:\n* $1 - block target, which may be user, IP, IP range or block ID",
 	"ipb_blocked_as_range": "Used when unblock of a single IP fails. Parameters:\n* $1 - IP address\n* $2 - IP address range",
 	"ip_range_invalid": "Used as error message in [[Special:Block]].\n\nSee also:\n* {{msg-mw|Range block disabled}}\n* {{msg-mw|Ip range invalid}}\n* {{msg-mw|Ip range toolarge}}",
 	"ip_range_toolarge": "Used as error message in [[Special:Block]]. Parameters:\n* $1 - a number from 0 to 32 for IPv4 (from 0 to 128 for IPv6); a part of CIDR (Classless Inter-Domain Routing) notation.\nSee also:\n* {{msg-mw|Range block disabled}}\n* {{msg-mw|Ip range invalid}}\n* {{msg-mw|Ip range toolarge}}",