diff --git a/src/options.cpp b/src/options.cpp
index b823351..65a01a6 100644
--- a/src/options.cpp
+++ b/src/options.cpp
@@ -57,14 +57,14 @@ po::variables_map parse_options(int argc, char *argv[])
          .str().data())
         ("regexp", po::value<std::string>()->value_name(translate("PATTERN")),
          translate("Use PATTERN for matching.").str().data())
-        ("input", po::value<std::vector<std::string>>()
+        ("input-file", po::value<std::vector<std::string>>()
          ->value_name(translate("FILE")),
-         translate("Input files. Can be repeated.").str().data())
+         translate("Input file. Can be used more than once.").str().data())
     ;
     // clang-format on
 
     po::positional_options_description positional_desc;
-    positional_desc.add("regexp", 1).add("input", -1);
+    positional_desc.add("regexp", 1).add("input-file", -1);
 
     po::variables_map vm;
     po::store(po::command_line_parser(argc, argv)
diff --git a/translations/de.po b/translations/de.po
index 3b3efaa..5227cd0 100644
--- a/translations/de.po
+++ b/translations/de.po
@@ -2,8 +2,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: epubgrep 0.0.0\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2021-05-20 11:32+0200\n"
-"PO-Revision-Date: 2021-05-20 11:31+0200\n"
+"POT-Creation-Date: 2021-05-20 11:37+0200\n"
+"PO-Revision-Date: 2021-05-20 11:38+0200\n"
 "Last-Translator: tastytea <tastytea@tastytea.de>\n"
 "Language-Team: tastytea <https://schlomp.space/tastytea/epubgrep>\n"
 "Language: de\n"
@@ -50,8 +50,8 @@ msgid "Ignore case distinctions in pattern and data."
 msgstr "Unterschied zwischen Groß- und Kleinschreibung ignorieren."
 
 #: /home/tastytea/Projekte/epubgrep/translations/../src/options.cpp:62
-msgid "Input files. Can be repeated."
-msgstr "Eingabedateien. Kann wiederholt werden."
+msgid "Input file. Can be used more than once."
+msgstr "Eingabedateien. Kann mehr als einmal angegeben werden."
 
 #: /home/tastytea/Projekte/epubgrep/translations/../src/options.cpp:58
 msgid "PATTERN"