diff --git a/kbuildx/scripts/netbsd-build.sh b/kbuildx/scripts/netbsd-build.sh
index 161a4c9..8e78272 100755
--- a/kbuildx/scripts/netbsd-build.sh
+++ b/kbuildx/scripts/netbsd-build.sh
@@ -2,11 +2,7 @@
 set -eu
 
 version=$1; repo=$2; ref=$3; label=$4; requested_config=$5; bundle=$6
-export PATH=/usr/pkg/bin:/sbin:/usr/sbin:/bin:/usr/bin
-# The release userland's /usr/bin/cc may not match the rolling source tree;
-# use the pkgsrc GCC toolchain explicitly for host-tool bootstrap.
-export CC=gcc
-export HOST_CC=gcc
+export PATH=/usr/pkg/gcc15/bin:/usr/pkg/bin:/sbin:/usr/sbin:/bin:/usr/bin
 work=/root/kbuildx
 src=$work/netbsd-src
 obj=$work/netbsd-obj
diff --git a/kbuildx/scripts/netbsd-deps.sh b/kbuildx/scripts/netbsd-deps.sh
index 391ec59..036223a 100755
--- a/kbuildx/scripts/netbsd-deps.sh
+++ b/kbuildx/scripts/netbsd-deps.sh
@@ -79,7 +79,7 @@ mkdir -p /usr/pkg/lib/perl5/5.42.0/TAP/Formatter /usr/pkg/bin /usr/pkg/sbin /usr
 
 export ASSUME_ALWAYS_YES=yes
 pkgin update
-pkgin -y install git gcc git-base gmake binutils gmake bison flex perl mozilla-rootcerts-openssl \
+pkgin -y install git gcc15 git-base gmake binutils gmake bison flex perl mozilla-rootcerts-openssl \
     || cat /var/db/pkgin/pkg_install-err.log
 if command -v mozilla-rootcerts >/dev/null 2>&1; then
     mozilla-rootcerts install