diff --git a/notebooks/tests/animate.ipynb b/notebooks/tests/animate.ipynb
index 0e242f611928820c1731cb7b7d161f54626fb4d4..80c4c8967ad77841e77743c62d4a6e00c6334285 100644
--- a/notebooks/tests/animate.ipynb
+++ b/notebooks/tests/animate.ipynb
@@ -384,11 +384,11 @@
    "outputs": [
     {
      "ename": "ProBError",
-     "evalue": "ProB reported Errors\nProB returned error messages:\nError: INITIALISATION FAILS (/Users/Shared/Uni/SHK/ProB2/prob2-jupyter-kernel/notebooks/tests/from_string.mch:6:15 to 6:44)",
+     "evalue": "ProB reported Errors\nProB returned error messages:\nError: INITIALISATION FAILS (/Users/Shared/Uni/SHK/ProB2/prob2-jupyter-kernel/notebooks/tests/(machine from Jupyter cell).mch:6:15 to 6:44)",
      "output_type": "error",
      "traceback": [
       "\u001b[1m\u001b[30mError from ProB: \u001b[0m\u001b[1m\u001b[31mProB reported Errors\u001b[0m",
-      "\u001b[1m\u001b[31mError: INITIALISATION FAILS (/Users/Shared/Uni/SHK/ProB2/prob2-jupyter-kernel/notebooks/tests/from_string.mch:6:15 to 6:44)\u001b[0m"
+      "\u001b[1m\u001b[31mError: INITIALISATION FAILS (/Users/Shared/Uni/SHK/ProB2/prob2-jupyter-kernel/notebooks/tests/(machine from Jupyter cell).mch:6:15 to 6:44)\u001b[0m"
      ]
     }
    ],
@@ -733,11 +733,11 @@
    "outputs": [
     {
      "ename": "ProBError",
-     "evalue": "ProB reported Errors\nProB returned error messages:\nError: INITIALISATION FAILS (/Users/Shared/Uni/SHK/ProB2/prob2-jupyter-kernel/notebooks/tests/from_string.mch:4:15 to 4:26)",
+     "evalue": "ProB reported Errors\nProB returned error messages:\nError: INITIALISATION FAILS (/Users/Shared/Uni/SHK/ProB2/prob2-jupyter-kernel/notebooks/tests/(machine from Jupyter cell).mch:4:15 to 4:26)",
      "output_type": "error",
      "traceback": [
       "\u001b[1m\u001b[30mError from ProB: \u001b[0m\u001b[1m\u001b[31mProB reported Errors\u001b[0m",
-      "\u001b[1m\u001b[31mError: INITIALISATION FAILS (/Users/Shared/Uni/SHK/ProB2/prob2-jupyter-kernel/notebooks/tests/from_string.mch:4:15 to 4:26)\u001b[0m"
+      "\u001b[1m\u001b[31mError: INITIALISATION FAILS (/Users/Shared/Uni/SHK/ProB2/prob2-jupyter-kernel/notebooks/tests/(machine from Jupyter cell).mch:4:15 to 4:26)\u001b[0m"
      ]
     }
    ],
diff --git a/src/main/java/de/prob2/jupyter/ProBKernel.java b/src/main/java/de/prob2/jupyter/ProBKernel.java
index 9fdb4e74c0921acd4a1ce0fef11b411b4e2d4f29..6872fbf4619559dee4284a59b1014067fc29b243 100644
--- a/src/main/java/de/prob2/jupyter/ProBKernel.java
+++ b/src/main/java/de/prob2/jupyter/ProBKernel.java
@@ -160,7 +160,7 @@ public final class ProBKernel extends BaseKernel {
 		this.commands.put("::render", injector.getInstance(RenderCommand.class));
 		this.commands.put(":prettyprint", injector.getInstance(PrettyPrintCommand.class));
 		
-		this.animationSelector.changeCurrentAnimation(new Trace(classicalBFactory.create("MACHINE repl END").load()));
+		this.animationSelector.changeCurrentAnimation(new Trace(classicalBFactory.create("(initial Jupyter machine)", "MACHINE repl END").load()));
 	}
 	
 	public @NotNull Map<@NotNull String, @NotNull Command> getCommands() {
diff --git a/src/main/java/de/prob2/jupyter/commands/LoadCellCommand.java b/src/main/java/de/prob2/jupyter/commands/LoadCellCommand.java
index c59dd894c75d8e6d8e9e3f20955d071a5d6b7c90..1f563a625ecf0a53f8ca0b4cd5b8a95a051e72cc 100644
--- a/src/main/java/de/prob2/jupyter/commands/LoadCellCommand.java
+++ b/src/main/java/de/prob2/jupyter/commands/LoadCellCommand.java
@@ -56,7 +56,7 @@ public final class LoadCellCommand implements Command {
 		final List<String> args = CommandUtils.splitArgs(prefsString);
 		final Map<String, String> preferences = CommandUtils.parsePreferences(args);
 		
-		this.animationSelector.changeCurrentAnimation(new Trace(this.classicalBFactory.create(body).load(preferences)));
+		this.animationSelector.changeCurrentAnimation(new Trace(this.classicalBFactory.create("(machine from Jupyter cell)", body).load(preferences)));
 		return new DisplayData("Loaded machine: " + this.animationSelector.getCurrentTrace().getStateSpace().getMainComponent());
 	}