diff --git a/src/miner.cpp b/src/miner.cpp
index 392d9aaa4..6893b8d4f 100644
--- a/src/miner.cpp
+++ b/src/miner.cpp
@@ -1214,11 +1214,12 @@ void static RandomXMiner()
                 }
                 fprintf(stderr,"RandomXMiner: created randomx flags + cache\n");
 
-                // The key block will change every ~21.3 hours with a 75s block time
+                // With the defaults of 1024 and 64
+                // the key block will change every ~21.3 hours with a 75s block time
                 // and every ~17 hours with the default 60s block time for HSCs
-                int randomxInterval = 1024;
+                int randomxInterval = GetArg("-ac_randomx_interval",1024);
                 // This lag is 80 mins for 75s blocktime and 64 mins for 60s (default) blocktime for HSCs
-                int randomxBlockLag = 64;
+                int randomxBlockLag = GetArg("-ac_randomx_lag", 64);
 
                 fprintf(stderr,"RandomXMiner: using initial key with interval=%d and lag=%d\n", randomxInterval, randomxBlockLag);
                 fprintf(stderr,"RandomXMiner: Mining_height=%u\n", Mining_height);