diff --git a/src/main.cpp b/src/main.cpp
index 1f40716..f37062c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -81,7 +81,7 @@ int main(int argc, char *argv[])
             catch (const epubgrep::zip::exception &e)
             {
                 cerr << translate("ERROR: ") << e.what() << '\n';
-                cerr << translate("Error while processing epub file.") << '\n';
+                cerr << translate("Error while processing EPUB file.") << '\n';
             }
         }
     }
diff --git a/src/zip.cpp b/src/zip.cpp
index 0c13049..b340178 100644
--- a/src/zip.cpp
+++ b/src/zip.cpp
@@ -60,7 +60,7 @@ std::vector<std::string> list(const fs::path &filepath)
     result = archive_read_free(zipfile);
     if (result != ARCHIVE_OK)
     {
-        throw exception{format(translate("ERROR: Could not close {0:s}.").str(),
+        throw exception{format(translate("Could not close {0:s}.").str(),
                                filepath.string())};
     }