diff --git a/scripts/base/init-bare.zeek b/scripts/base/init-bare.zeek
index 9e102ed6fc..d8c3ec2114 100644
--- a/scripts/base/init-bare.zeek
+++ b/scripts/base/init-bare.zeek
@@ -4963,9 +4963,6 @@ const dpd_ignore_ports = F &redef;
 ## connection if it misses the initial handshake.
 const likely_server_ports: set[port] &redef;
 
-## Per-incident timer managers are drained after this amount of inactivity.
-const timer_mgr_inactivity_timeout = 1 min &redef;
-
 ## If true, output profiling for Time-Machine queries.
 const time_machine_profiling = F &redef;
 
diff --git a/src/NetVar.cc b/src/NetVar.cc
index e9084f3085..3d66da0990 100644
--- a/src/NetVar.cc
+++ b/src/NetVar.cc
@@ -189,8 +189,6 @@ int dpd_ignore_ports;
 
 int check_for_unused_event_handlers;
 
-double timer_mgr_inactivity_timeout;
-
 int record_all_packets;
 
 bro_uint_t bits_per_uid;
@@ -345,8 +343,6 @@ void init_net_var()
 	dpd_match_only_beginning = id::find_val("dpd_match_only_beginning")->AsBool();
 	dpd_late_match_stop = id::find_val("dpd_late_match_stop")->AsBool();
 	dpd_ignore_ports = id::find_val("dpd_ignore_ports")->AsBool();
-
-	timer_mgr_inactivity_timeout = id::find_val("timer_mgr_inactivity_timeout")->AsInterval();
 	}
 
 	} // namespace zeek::detail
diff --git a/src/NetVar.h b/src/NetVar.h
index b79e80d2b1..3f8e11bac0 100644
--- a/src/NetVar.h
+++ b/src/NetVar.h
@@ -90,8 +90,6 @@ extern int dpd_ignore_ports;
 
 extern int check_for_unused_event_handlers;
 
-extern double timer_mgr_inactivity_timeout;
-
 extern int record_all_packets;
 
 extern bro_uint_t bits_per_uid;