diff --git a/src/calibre/translations/ar.po b/src/calibre/translations/ar.po
index a76f26ab0e..a4ebecad91 100644
--- a/src/calibre/translations/ar.po
+++ b/src/calibre/translations/ar.po
@@ -338,7 +338,7 @@ msgstr "لا يجد ملحق صالح "
 
 #: /home/kovid/work/calibre/src/calibre/customize/ui.py:229
 msgid "Initialization of plugin %s failed with traceback:"
-msgstr "فشل استهلال الملحق s% مع اقتفاء الأثر:"
+msgstr "فشل استهلال الملحق %s مع اقتفاء الأثر:"
 
 #: /home/kovid/work/calibre/src/calibre/customize/ui.py:359
 msgid ""
diff --git a/src/calibre/translations/pt_BR.po b/src/calibre/translations/pt_BR.po
index 63c94c2fe0..2da0c8f919 100644
--- a/src/calibre/translations/pt_BR.po
+++ b/src/calibre/translations/pt_BR.po
@@ -2390,7 +2390,7 @@ msgstr ""
 
 #: /home/kovid/work/calibre/src/calibre/gui2/convert/comic_input_ui.py:87
 msgid "&Disable comic processing"
-msgstr "%Desativar processamento de gibis"
+msgstr "&Desativar processamento de gibis"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/convert/debug.py:19
 msgid "Debug"
@@ -3917,7 +3917,7 @@ msgstr "Instalar novo plugin"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/dialogs/config/config_ui.py:555
 msgid "Plugin &file:"
-msgstr "%Arquivo de plugin:"
+msgstr "&Arquivo de plugin:"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/dialogs/config/config_ui.py:557
 msgid "&Add"
diff --git a/src/calibre/translations/sk.po b/src/calibre/translations/sk.po
index ef6f91f4d5..7703a78340 100644
--- a/src/calibre/translations/sk.po
+++ b/src/calibre/translations/sk.po
@@ -172,7 +172,7 @@ msgid ""
 "latin1, iso-8859-1 and utf-8."
 msgstr ""
 "Kódovanie znakov pre vstupné HTML súbory. Bežne používané kódovania sú napr. "
-"cp1252, iso-8859-1 alebo utf-8."
+"cp1252, latin1, iso-8859-1 alebo utf-8."
 
 #: /home/kovid/work/calibre/src/calibre/customize/builtins.py:56
 msgid "Extract cover from comic files"
diff --git a/src/calibre/translations/zh_CN.po b/src/calibre/translations/zh_CN.po
index 927ff4b88f..b2f44660fd 100644
--- a/src/calibre/translations/zh_CN.po
+++ b/src/calibre/translations/zh_CN.po
@@ -3016,15 +3016,15 @@ msgstr "控制内容目录的创建/转换"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/convert/toc.py:29
 msgid "Level &1 TOC (XPath expression):"
-msgstr "一级目录（XPath 表达式）："
+msgstr "&一级目录（XPath 表达式）："
 
 #: /home/kovid/work/calibre/src/calibre/gui2/convert/toc.py:30
 msgid "Level &2 TOC (XPath expression):"
-msgstr "二级目录（XPath 表达式）："
+msgstr "&二级目录（XPath 表达式）："
 
 #: /home/kovid/work/calibre/src/calibre/gui2/convert/toc.py:31
 msgid "Level &3 TOC (XPath expression):"
-msgstr "三级目录（XPath 表达式）："
+msgstr "&三级目录（XPath 表达式）："
 
 #: /home/kovid/work/calibre/src/calibre/gui2/convert/toc_ui.py:62
 msgid "Do not add &detected chapters to the Table of Contents"
@@ -5197,7 +5197,7 @@ msgstr ""
 "                <li>拔下阅读器。等待重新生成数据库（如，等待它可以正常使用）。再次插入。则它可以和 %(app)s "
 "协作。如果不行，尝试下一个步骤。</li>\n"
 "                <li>退出 %(app)s。 找到阅读器主存储器中 media.xml "
-"文件。删除。拔下阅读器。等待它重新生成该文件。重新连接它之后开启 %(app)。</li>\n"
+"文件。删除。拔下阅读器。等待它重新生成该文件。重新连接它之后开启 %(app)s。</li>\n"
 "                </ol>\n"
 "                "
 
@@ -5990,7 +5990,7 @@ msgstr "正在加载流..."
 
 #: /home/kovid/work/calibre/src/calibre/gui2/viewer/main.py:489
 msgid "Laying out %s"
-msgstr "正在排布流..."
+msgstr "正在排布流 %s..."
 
 #: /home/kovid/work/calibre/src/calibre/gui2/viewer/main.py:518
 msgid "Manage Bookmarks"