diff --git a/src/main/java/de/neemann/digital/fsm/gui/FSMFrame.java b/src/main/java/de/neemann/digital/fsm/gui/FSMFrame.java
index c90b5e24b..e14a89ef7 100644
--- a/src/main/java/de/neemann/digital/fsm/gui/FSMFrame.java
+++ b/src/main/java/de/neemann/digital/fsm/gui/FSMFrame.java
@@ -58,7 +58,7 @@ public class FSMFrame extends JFrame implements ClosingWindowListener.ConfirmSav
     private File filename;
     private File baseFilename;
     private boolean lastModified;
-    private String circuitName;
+    private String probeLabelName;
 
     /**
      * Creates a new instance
@@ -391,22 +391,23 @@ public class FSMFrame extends JFrame implements ClosingWindowListener.ConfirmSav
     }
 
     /**
-     * Sets the fsm name used in the circuit wich has opened this window
+     * Sets the fsm name used in the circuit probe label which has opened
+     * this window.
      *
-     * @param circuitName the fsm name contained in the circuit
+     * @param probeLabelName the fsm name contained in the circuit
      * @return this for chained calls
      */
-    public FSMFrame setCircuitName(String circuitName) {
-        this.circuitName = circuitName;
+    public FSMFrame setProbeLabelName(String probeLabelName) {
+        this.probeLabelName = probeLabelName;
         return this;
     }
 
     private File getFileNameFromHistory() {
         File f = fileHistory.getMostRecent();
         if (f != null)
-            for (File l : fileHistory.getFiles())
-                if (l.getName().equals(circuitName))
-                    f = l;
+            for (File hf : fileHistory.getFiles())
+                if (hf.getName().equals(probeLabelName))
+                    f = hf;
         return f;
     }
 
diff --git a/src/main/java/de/neemann/digital/gui/Main.java b/src/main/java/de/neemann/digital/gui/Main.java
index 6a7ce93ea..26fefaf34 100644
--- a/src/main/java/de/neemann/digital/gui/Main.java
+++ b/src/main/java/de/neemann/digital/gui/Main.java
@@ -1149,7 +1149,7 @@ public final class Main extends JFrame implements ClosingWindowListener.ConfirmS
 
                 new FSMFrame(Main.this, library)
                         .setBaseFileName(filename)
-                        .setCircuitName(foundName)
+                        .setProbeLabelName(foundName)
                         .registerTo(Main.this)
                         .setVisible(true);
             }