diff --git a/server/src/main/java/io/druid/server/coordinator/CoordinatorDynamicConfig.java b/server/src/main/java/io/druid/server/coordinator/CoordinatorDynamicConfig.java
index 395646ad0c2..ea0c15f2c17 100644
--- a/server/src/main/java/io/druid/server/coordinator/CoordinatorDynamicConfig.java
+++ b/server/src/main/java/io/druid/server/coordinator/CoordinatorDynamicConfig.java
@@ -55,7 +55,7 @@ public class CoordinatorDynamicConfig
     this.emitBalancingStats = emitBalancingStats;
     this.balancerComputeThreads = Math.min(
         Math.max(balancerComputeThreads, 1),
-        Runtime.getRuntime().availableProcessors() - 1
+        Math.max(Runtime.getRuntime().availableProcessors() - 1, 1)
     );
   }