diff --git a/install.sh b/install.sh
index e973451f..3b4c9833 100755
--- a/install.sh
+++ b/install.sh
@@ -195,13 +195,6 @@ BOOST_OPTIONS=(
 "--with-thread" \
 "--with-test")
 
-# Define czmq options.
-#------------------------------------------------------------------------------
-CZMQ_OPTIONS=(
-"--disable-zmakecert" \
-"--disable-czmq_selftest" \
-"${with_pkgconfigdir}")
-
 # Define secp256k1 options.
 #------------------------------------------------------------------------------
 SECP256K1_OPTIONS=(
@@ -716,7 +709,6 @@ build_all()
 {
     build_from_tarball_boost $BOOST_URL $BOOST_ARCHIVE bzip2 . $PARALLEL "$BUILD_BOOST" "${BOOST_OPTIONS[@]}"
     build_from_github zeromq libzmq master $PARALLEL ${ZMQ_OPTIONS[@]} "$@"
-    build_from_github zeromq czmq master $PARALLEL ${CZMQ_OPTIONS[@]} "$@"
     build_from_github libbitcoin secp256k1 version4 $PARALLEL ${SECP256K1_OPTIONS[@]} "$@"
     build_from_github libbitcoin libbitcoin master $PARALLEL ${BITCOIN_OPTIONS[@]} "$@"
     build_from_github libbitcoin libbitcoin-consensus version2 $PARALLEL ${BITCOIN_CONSENSUS_OPTIONS[@]} "$@"