diff --git a/src/main/java/jace/config/Configuration.java b/src/main/java/jace/config/Configuration.java
index fdd6835..ee4de17 100644
--- a/src/main/java/jace/config/Configuration.java
+++ b/src/main/java/jace/config/Configuration.java
@@ -284,7 +284,7 @@ public class Configuration implements Reconfigurable {
 //            System.out.println("Evaluating field " + f.getName());
             try {
                 Object o = f.get(node.subject);
-                if (!f.getType().isPrimitive() && visited.contains(o)) {
+                if (!f.getType().isPrimitive() && f.getType() != String.class && visited.contains(o)) {
                     continue;
                 }
                 visited.add(o);
diff --git a/src/main/java/jace/hardware/CardDiskII.java b/src/main/java/jace/hardware/CardDiskII.java
index 97e8af5..a7e3bd7 100644
--- a/src/main/java/jace/hardware/CardDiskII.java
+++ b/src/main/java/jace/hardware/CardDiskII.java
@@ -56,7 +56,7 @@ public class CardDiskII extends Card implements Reconfigurable, MediaConsumerPar
     static public boolean USE_MAX_SPEED = true;
     @ConfigurableField(category = "Disk", defaultValue = "", shortName = "d1", name = "Drive 1 disk image", description = "Path of disk 1")
     public String disk1;
-    @ConfigurableField(category = "Disk", defaultValue = "", shortName = "d2", name = "Drive 2 disk image", description = "Path of disk 1")
+    @ConfigurableField(category = "Disk", defaultValue = "", shortName = "d2", name = "Drive 2 disk image", description = "Path of disk 2")
     public String disk2;
 
     public CardDiskII(Computer computer) {