diff --git a/src/emucore/Cart3E.cxx b/src/emucore/Cart3E.cxx
index b03175477..a79e79167 100644
--- a/src/emucore/Cart3E.cxx
+++ b/src/emucore/Cart3E.cxx
@@ -22,7 +22,14 @@
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 Cartridge3E::Cartridge3E(const ByteBuffer& image, size_t size,
                          const string& md5, const Settings& settings)
-  : CartridgeEnhanced(image, size, BSPF::nextMultipleOf(size, 1_KB), md5, settings)
+  : Cartridge3E(image, size, BSPF::nextMultipleOf(size, 2_KB), md5, settings)
+{
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Cartridge3E::Cartridge3E(const ByteBuffer& image, size_t size, size_t bsSize,
+                         const string& md5, const Settings& settings)
+  : CartridgeEnhanced(image, size, bsSize, md5, settings)
 {
   myBankShift = BANK_SHIFT;
   myRamSize = RAM_SIZE;
diff --git a/src/emucore/Cart3E.hxx b/src/emucore/Cart3E.hxx
index f2ead51f5..96fc7b28b 100644
--- a/src/emucore/Cart3E.hxx
+++ b/src/emucore/Cart3E.hxx
@@ -65,7 +65,7 @@ class Cartridge3E : public CartridgeEnhanced
 
   public:
     /**
-      Create a new cartridge using the specified image and size
+      Create a new cartridge using the specified image and size.
 
       @param image     Pointer to the ROM image
       @param size      The size of the ROM image
@@ -76,6 +76,21 @@ class Cartridge3E : public CartridgeEnhanced
                 const Settings& settings);
     virtual ~Cartridge3E() = default;
 
+  protected:
+    /**
+      Create a new cartridge using the specified image and size.
+      This is an alternate version of the constructor, meant to be used
+      only by classes inheriting from this class.
+
+      @param image     Pointer to the ROM image
+      @param size      The size of the ROM image
+      @param bsSize    The size specified by the bankswitching scheme
+      @param md5       The md5sum of the ROM image
+      @param settings  A reference to the various settings (read-only)
+    */
+    Cartridge3E(const ByteBuffer& image, size_t size, size_t bsSize,
+                const string& md5, const Settings& settings);
+
   public:
 
     /**
diff --git a/src/emucore/Cart3EPlus.cxx b/src/emucore/Cart3EPlus.cxx
index 6c9fe7c2a..6d5ce7d4c 100644
--- a/src/emucore/Cart3EPlus.cxx
+++ b/src/emucore/Cart3EPlus.cxx
@@ -22,7 +22,7 @@
 //  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 Cartridge3EPlus::Cartridge3EPlus(const ByteBuffer& image, size_t size,
                                  const string& md5, const Settings& settings)
-  : Cartridge3E(image, size, md5, settings)
+  : Cartridge3E(image, size, BSPF::nextMultipleOf(size, 1_KB), md5, settings)
 {
   myBankShift = BANK_SHIFT;
   myRamSize = RAM_SIZE;
diff --git a/src/emucore/CartEnhanced.hxx b/src/emucore/CartEnhanced.hxx
index be0ac95de..cd398be11 100644
--- a/src/emucore/CartEnhanced.hxx
+++ b/src/emucore/CartEnhanced.hxx
@@ -41,8 +41,8 @@ class CartridgeEnhanced : public Cartridge
 
       @param image     Pointer to the ROM image
       @param size      The size of the ROM image
-      @param md5       The md5sum of the ROM image
       @param bsSize    The size specified by the bankswitching scheme
+      @param md5       The md5sum of the ROM image
       @param settings  A reference to the various settings (read-only)
     */
     CartridgeEnhanced(const ByteBuffer& image, size_t size, size_t bsSize,