diff --git a/cockatrice/src/game/cards/card_database.cpp b/cockatrice/src/game/cards/card_database.cpp
index 3e6589a61..78c7712ef 100644
--- a/cockatrice/src/game/cards/card_database.cpp
+++ b/cockatrice/src/game/cards/card_database.cpp
@@ -427,7 +427,7 @@ PrintingInfo CardDatabase::getSpecificPrinting(const QString &cardName,
     return PrintingInfo(nullptr);
 }
 
-QString CardDatabase::getPreferredPrintingProviderId(const QString &cardName)
+QString CardDatabase::getPreferredPrintingProviderId(const QString &cardName) const
 {
     PrintingInfo preferredPrinting = getPreferredPrinting(cardName);
     QString uuid = preferredPrinting.getProperty("uuid");
@@ -442,7 +442,7 @@ QString CardDatabase::getPreferredPrintingProviderId(const QString &cardName)
     return defaultCardInfo->getName();
 }
 
-bool CardDatabase::isPreferredPrinting(const CardRef &cardRef)
+bool CardDatabase::isPreferredPrinting(const CardRef &cardRef) const
 {
     if (cardRef.providerId.startsWith("card_")) {
         return cardRef.providerId ==
diff --git a/cockatrice/src/game/cards/card_database.h b/cockatrice/src/game/cards/card_database.h
index c12b1fc38..8412ed87c 100644
--- a/cockatrice/src/game/cards/card_database.h
+++ b/cockatrice/src/game/cards/card_database.h
@@ -77,8 +77,8 @@ public:
     [[nodiscard]] PrintingInfo getSpecificPrinting(const CardRef &cardRef) const;
     PrintingInfo
     getSpecificPrinting(const QString &cardName, const QString &setShortName, const QString &collectorNumber) const;
-    QString getPreferredPrintingProviderId(const QString &cardName);
-    bool isPreferredPrinting(const CardRef &cardRef);
+    QString getPreferredPrintingProviderId(const QString &cardName) const;
+    bool isPreferredPrinting(const CardRef &cardRef) const;
 
     [[nodiscard]] CardInfoPtr guessCard(const CardRef &cardRef) const;