diff --git a/i18n/ja.json b/i18n/ja.json
index 457cb124..ddac0a5f 100644
--- a/i18n/ja.json
+++ b/i18n/ja.json
@@ -6,7 +6,12 @@
     "Paste does not exist, has expired or has been deleted.": "Paste does not exist, has expired or has been deleted.",
     "%s requires php %s or above to work. Sorry.": "%s requires php %s or above to work. Sorry.",
     "%s requires configuration section [%s] to be present in configuration file.": "%s requires configuration section [%s] to be present in configuration file.",
-    "Please wait %d seconds between each post.": "Please wait %d seconds between each post.",
+    "Please wait %d seconds between each post.": [
+        "Please wait %d second between each post. (singular)",
+        "Please wait %d seconds between each post. (1st plural)",
+        "Please wait %d seconds between each post. (2nd plural)",
+        "Please wait %d seconds between each post. (3rd plural)"
+    ],
     "Paste is limited to %s of encrypted data.": "Paste is limited to %s of encrypted data.",
     "Invalid data.": "Invalid data.",
     "You are unlucky. Try again.": "You are unlucky. Try again.",
@@ -74,33 +79,33 @@
     "Note: This is a test service: Data may be deleted anytime. Kittens will die if you abuse this service.": "Note: This is a test service: Data may be deleted anytime. Kittens will die if you abuse this service.",
     "This document will expire in %d seconds.": [
         "This document will expire in %d second. (singular)",
-        "This document will expire in %d seconds (1st plural)",
-        "This document will expire in %d seconds (2nd plural)",
-        "This document will expire in %d seconds (3rd plural)"
+        "This document will expire in %d seconds. (1st plural)",
+        "This document will expire in %d seconds. (2nd plural)",
+        "This document will expire in %d seconds. (3rd plural)"
     ],
     "This document will expire in %d minutes.": [
         "This document will expire in %d minute. (singular)",
-        "This document will expire in %d minutes (1st plural)",
-        "This document will expire in %d minutes (2nd plural)",
-        "This document will expire in %d minutes (3rd plural)"
+        "This document will expire in %d minutes. (1st plural)",
+        "This document will expire in %d minutes. (2nd plural)",
+        "This document will expire in %d minutes. (3rd plural)"
     ],
     "This document will expire in %d hours.": [
         "This document will expire in %d hour. (singular)",
-        "This document will expire in %d hours (1st plural)",
-        "This document will expire in %d hours (2nd plural)",
-        "This document will expire in %d hours (3rd plural)"
+        "This document will expire in %d hours. (1st plural)",
+        "This document will expire in %d hours. (2nd plural)",
+        "This document will expire in %d hours. (3rd plural)"
     ],
     "This document will expire in %d days.": [
         "This document will expire in %d day. (singular)",
-        "This document will expire in %d days (1st plural)",
-        "This document will expire in %d days (2nd plural)",
-        "This document will expire in %d days (3rd plural)"
+        "This document will expire in %d days. (1st plural)",
+        "This document will expire in %d days. (2nd plural)",
+        "This document will expire in %d days. (3rd plural)"
     ],
     "This document will expire in %d months.": [
         "This document will expire in %d month. (singular)",
-        "This document will expire in %d months (1st plural)",
-        "This document will expire in %d months (2nd plural)",
-        "This document will expire in %d months (3rd plural)"
+        "This document will expire in %d months. (1st plural)",
+        "This document will expire in %d months. (2nd plural)",
+        "This document will expire in %d months. (3rd plural)"
     ],
     "Please enter the password for this paste:": "Please enter the password for this paste:",
     "Could not decrypt data (Wrong key?)": "Could not decrypt data (Wrong key?)",