diff --git a/jvb/src/main/kotlin/org/jitsi/videobridge/health/JvbHealthChecker.kt b/jvb/src/main/kotlin/org/jitsi/videobridge/health/JvbHealthChecker.kt
index 4ac422933a..d01402dc67 100644
--- a/jvb/src/main/kotlin/org/jitsi/videobridge/health/JvbHealthChecker.kt
+++ b/jvb/src/main/kotlin/org/jitsi/videobridge/health/JvbHealthChecker.kt
@@ -57,7 +57,7 @@ class JvbHealthChecker : HealthCheckService {
     }
 
     private fun hasValidAddress(): Boolean {
-        if (Harvesters.singlePortHarvesters.any { it.localAddress.address.isValid() }) {
+        if (Harvesters.singlePortHarvesters?.any { it.localAddress.address.isValid() } == true) {
             return true
         }
         if (MappingCandidateHarvesters.getHarvesters().any { it.mask?.address?.isValid() == true }) {