diff --git a/testapp/src/main/java/org/mpisws/testapp/simulator/SimulatorEncounterFormationCore.java b/testapp/src/main/java/org/mpisws/testapp/simulator/SimulatorEncounterFormationCore.java
index 5cb3a6bbfd6fda476b8c91432b6cf262bfd1ce07..fa66f46fc1aafb27924564890db0a0c60743db4b 100644
--- a/testapp/src/main/java/org/mpisws/testapp/simulator/SimulatorEncounterFormationCore.java
+++ b/testapp/src/main/java/org/mpisws/testapp/simulator/SimulatorEncounterFormationCore.java
@@ -89,7 +89,7 @@ public class SimulatorEncounterFormationCore implements Runnable {
         if (changeEpochTime < System.currentTimeMillis()) {
             Log.d(TAG, "CHANGING EPOCH");
             CURRENT_EPOCH++;
-            if (CURRENT_EPOCH <= NUM_SIMULATED_EPOCHS) {
+            if (CURRENT_EPOCH >= NUM_SIMULATED_EPOCHS) {
                 // hack
                 CURRENT_EPOCH--;
             }