diff --git a/src/config.c b/src/config.c
index aedef4888..54494c8e1 100644
--- a/src/config.c
+++ b/src/config.c
@@ -1122,7 +1122,7 @@ void configSetCommand(client *c) {
     } config_set_numerical_field(
       "lua-time-limit",server.lua_time_limit,0,LONG_MAX) {
     } config_set_numerical_field(
-      "slowlog-log-slower-than",server.slowlog_log_slower_than,0,LLONG_MAX) {
+      "slowlog-log-slower-than",server.slowlog_log_slower_than,-1,LLONG_MAX) {
     } config_set_numerical_field(
       "slowlog-max-len",ll,0,LONG_MAX) {
       /* Cast to unsigned. */
diff --git a/src/latency.c b/src/latency.c
index 87e926078..e8d2af306 100644
--- a/src/latency.c
+++ b/src/latency.c
@@ -294,7 +294,7 @@ sds createLatencyReport(void) {
 
         /* Potentially commands. */
         if (!strcasecmp(event,"command")) {
-            if (server.slowlog_log_slower_than == 0) {
+            if (server.slowlog_log_slower_than < 0) {
                 advise_slowlog_enabled = 1;
                 advices++;
             } else if (server.slowlog_log_slower_than/1000 >