diff --git a/futurenet/core/etc/stellar-core.cfg b/futurenet/core/etc/stellar-core.cfg
index 99632403..76f08c10 100644
--- a/futurenet/core/etc/stellar-core.cfg
+++ b/futurenet/core/etc/stellar-core.cfg
@@ -4,7 +4,6 @@ LOG_FILE_PATH=""
 MANUAL_CLOSE=__MANUAL_CLOSE__
 
 NETWORK_PASSPHRASE="__NETWORK__"
-KNOWN_CURSORS=["HORIZON"]
 DATABASE="postgresql://dbname=core host=localhost user=stellar password=__PGPASS__"
 UNSAFE_QUORUM=true
 FAILURE_SAFETY=0
diff --git a/local/core/etc/stellar-core.cfg b/local/core/etc/stellar-core.cfg
index 5a677327..eebe132f 100644
--- a/local/core/etc/stellar-core.cfg
+++ b/local/core/etc/stellar-core.cfg
@@ -7,7 +7,6 @@ MANUAL_CLOSE=__MANUAL_CLOSE__
 ARTIFICIALLY_ACCELERATE_TIME_FOR_TESTING=true
 
 NETWORK_PASSPHRASE="__NETWORK__"
-KNOWN_CURSORS=["HORIZON"]
 NODE_SEED="SDQVDISRYN2JXBS7ICL7QJAEKB3HWBJFP2QECXG7GZICAHBK4UNJCWK2 self"
 NODE_IS_VALIDATOR=true
 
diff --git a/pubnet/core/etc/stellar-core.cfg b/pubnet/core/etc/stellar-core.cfg
index 5f593cf1..9d0f432e 100644
--- a/pubnet/core/etc/stellar-core.cfg
+++ b/pubnet/core/etc/stellar-core.cfg
@@ -5,7 +5,6 @@ MANUAL_CLOSE=__MANUAL_CLOSE__
 
 DATABASE="postgresql://dbname=core host=localhost user=stellar password=__PGPASS__"
 NETWORK_PASSPHRASE="Public Global Stellar Network ; September 2015"
-KNOWN_CURSORS=["HORIZON"]
 CATCHUP_RECENT=100
 
 [[HOME_DOMAINS]]
diff --git a/testnet/core/etc/stellar-core.cfg b/testnet/core/etc/stellar-core.cfg
index 9d78078c..f225e6b6 100644
--- a/testnet/core/etc/stellar-core.cfg
+++ b/testnet/core/etc/stellar-core.cfg
@@ -4,7 +4,6 @@ LOG_FILE_PATH=""
 MANUAL_CLOSE=__MANUAL_CLOSE__
 
 NETWORK_PASSPHRASE="__NETWORK__"
-KNOWN_CURSORS=["HORIZON"]
 DATABASE="postgresql://dbname=core host=localhost user=stellar password=__PGPASS__"
 CATCHUP_RECENT=100