diff --git a/libcockatrice_deck_list/libcockatrice/deck_list/deck_list.cpp b/libcockatrice_deck_list/libcockatrice/deck_list/deck_list.cpp
index c5adeb952..c2134c21d 100644
--- a/libcockatrice_deck_list/libcockatrice/deck_list/deck_list.cpp
+++ b/libcockatrice_deck_list/libcockatrice/deck_list/deck_list.cpp
@@ -250,7 +250,10 @@ bool DeckList::loadFromStream_Plain(QTextStream &in,
                                     bool preserveMetadata,
                                     const std::function<QString(const QString &)> &cardNameNormalizer)
 {
-    bool ok = DeckListPlainText::parse(in, preserveMetadata, cardNameNormalizer, metadata, tree);
+    if (!preserveMetadata) {
+        metadata = {};
+    }
+    bool ok = DeckListPlainText::parse(in, cardNameNormalizer, metadata, tree);
     refreshDeckHash();
     return ok;
 }
diff --git a/libcockatrice_deck_list/libcockatrice/deck_list/deck_list_plain_text_parser.cpp b/libcockatrice_deck_list/libcockatrice/deck_list/deck_list_plain_text_parser.cpp
index 093681d21..de50d743b 100644
--- a/libcockatrice_deck_list/libcockatrice/deck_list/deck_list_plain_text_parser.cpp
+++ b/libcockatrice_deck_list/libcockatrice/deck_list/deck_list_plain_text_parser.cpp
@@ -10,30 +10,26 @@ namespace DeckListPlainText
 {
 
 bool parse(QTextStream &in,
-           bool preserveMetadata,
            const std::function<QString(const QString &)> &cardNameNormalizer,
            DeckList::Metadata &metadata,
            DecklistNodeTree &tree)
 {
     tree.clear();
-    if (!preserveMetadata) {
-        metadata = {};
-    }
 
-    const QRegularExpression reCardLine(R"(^\s*[\w\[\(\{].*$)", QRegularExpression::UseUnicodePropertiesOption);
-    const QRegularExpression reEmpty("^\\s*$");
-    const QRegularExpression reComment(R"([\w\[\(\{].*$)", QRegularExpression::UseUnicodePropertiesOption);
-    const QRegularExpression reSBMark("^\\s*sb:\\s*(.+)", QRegularExpression::CaseInsensitiveOption);
-    const QRegularExpression reSBComment("^sideboard\\b.*$", QRegularExpression::CaseInsensitiveOption);
-    const QRegularExpression reDeckComment("^((main)?deck(list)?|mainboard)\\b",
-                                           QRegularExpression::CaseInsensitiveOption);
+    static const QRegularExpression reCardLine(R"(^\s*[\w\[\(\{].*$)", QRegularExpression::UseUnicodePropertiesOption);
+    static const QRegularExpression reEmpty("^\\s*$");
+    static const QRegularExpression reComment(R"([\w\[\(\{].*$)", QRegularExpression::UseUnicodePropertiesOption);
+    static const QRegularExpression reSBMark("^\\s*sb:\\s*(.+)", QRegularExpression::CaseInsensitiveOption);
+    static const QRegularExpression reSBComment("^sideboard\\b.*$", QRegularExpression::CaseInsensitiveOption);
+    static const QRegularExpression reDeckComment("^((main)?deck(list)?|mainboard)\\b",
+                                                  QRegularExpression::CaseInsensitiveOption);
 
     // Regex for advanced card parsing
-    const QRegularExpression reMultiplier(R"(^[xX\(\[]*(\d+)[xX\*\)\]]* ?(.+))");
+    static const QRegularExpression reMultiplier(R"(^[xX\(\[]*(\d+)[xX\*\)\]]* ?(.+))");
 
     // Regex for extracting set code and collector number with attached symbols
-    const QRegularExpression reHyphenFormat(R"(\((\w{3,})\)\s+(\w{3,})-(\d+[^\w\s]*))");
-    const QRegularExpression reRegularFormat(R"(\((\w{3,})\)\s+(\d+[^\w\s]*))");
+    static const QRegularExpression reHyphenFormat(R"(\((\w{3,})\)\s+(\w{3,})-(\d+[^\w\s]*))");
+    static const QRegularExpression reRegularFormat(R"(\((\w{3,})\)\s+(\d+[^\w\s]*))");
 
     auto inputs = in.readAll().trimmed().split('\n');
     auto max_line = inputs.size();
diff --git a/libcockatrice_deck_list/libcockatrice/deck_list/deck_list_plain_text_parser.h b/libcockatrice_deck_list/libcockatrice/deck_list/deck_list_plain_text_parser.h
index 741119536..e0f456a18 100644
--- a/libcockatrice_deck_list/libcockatrice/deck_list/deck_list_plain_text_parser.h
+++ b/libcockatrice_deck_list/libcockatrice/deck_list/deck_list_plain_text_parser.h
@@ -14,11 +14,9 @@ namespace DeckListPlainText
 /**
  * @brief Parses a plain-text deck list into a tree and its metadata.
  *
- * Clears the tree first, and clears the metadata unless @p preserveMetadata is
- * true, then fills both from the text.
+ * Clears the tree first, then fills both from the text.
  *
  * @param in The text to load
- * @param preserveMetadata If true, don't clear the existing metadata
  * @param cardNameNormalizer Function that takes the parsed card name string
  *        in the text and returns the name to store
  * @param metadata Deck metadata written by the parser
@@ -26,7 +24,6 @@ namespace DeckListPlainText
  * @return False if the input was empty, true otherwise.
  */
 bool parse(QTextStream &in,
-           bool preserveMetadata,
            const std::function<QString(const QString &)> &cardNameNormalizer,
            DeckList::Metadata &metadata,
            DecklistNodeTree &tree);