diff --git a/i18n/ja.json b/i18n/ja.json
index f9834c224..0747d9535 100644
--- a/i18n/ja.json
+++ b/i18n/ja.json
@@ -28,7 +28,7 @@
 	"math-visualeditor-mwlatexinspector-display-block": "ブロック",
 	"math-visualeditor-mwlatexinspector-display-default": "既定",
 	"math-visualeditor-mwlatexinspector-display-inline": "インライン",
-	"math-visualeditor-mwlatexinspector-id": "リンクID(オプション)",
+	"math-visualeditor-mwlatexinspector-id": "リンクID (オプション)",
 	"math-visualeditor-mwmathdialog-title": "数式",
 	"math-visualeditor-symbol-group-chem-addition": "付加反応",
 	"math-visualeditor-symbol-group-chem-arrows": "矢印",
@@ -81,6 +81,7 @@
 	"math_syntax_error": "構文エラー",
 	"math_tip": "数式 (LaTeX)",
 	"math-tracking-category-error": "mathエラーのあるページ",
+	"math-tracking-category-render-error": "math 参照エラーのあるページ",
 	"math_unknown_error": "不明なエラー",
 	"math_unknown_function": "不明な関数「$1」",
 	"mw_math_latexml": "LaTeXML (開発中。MathML を使用)",
diff --git a/i18n/jv.json b/i18n/jv.json
index 6b83eb2a6..a4c1461bb 100644
--- a/i18n/jv.json
+++ b/i18n/jv.json
@@ -17,7 +17,7 @@
 	"math_unknown_error": "Kaluputan sing ora dimangertèni",
 	"math_unknown_function": "fungsi sing ora dimangertèni",
 	"mw_math_mathml": "MathML yèn bisa (pracoban)",
-	"mw_math_png": "Mesthi nggawé PNG",
-	"mw_math_source": "Dijarna waé minangka TeX (kanggo panjlajah wèb tèks)",
+	"mw_math_png": "Gambar PNG",
+	"mw_math_source": "Sumber LaTeX (tumrap pangluron tèks)",
 	"prefs-math": "Matématika"
 }