diff --git a/lang/quilc/Makefile b/lang/quilc/Makefile
index fc122461325f..0a5092c68973 100644
--- a/lang/quilc/Makefile
+++ b/lang/quilc/Makefile
@@ -1,84 +1,86 @@
 PORTNAME=	quilc
 DISTVERSIONPREFIX=	v
 DISTVERSION=	1.26.0
 PORTREVISION=	1
 CATEGORIES=	lang # quantum-computing
 DIST_SUBDIR=	${PORTNAME}-${DISTVERSION} # many files, some are unversioned
 EXTRACT_ONLY=	${DISTNAME}${EXTRACT_SUFX}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Optimizing Quil compiler (for quantum computing)
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
+BROKEN_i386=	mmap: Cannot allocate memory, see https://bugs.launchpad.net/sbcl/+bug/1983744
+
 BUILD_DEPENDS=	sbcl:lang/sbcl \
 		cppzmq>0:net/cppzmq
 LIB_DEPENDS=	libblas.so:math/blas \
 		libffi.so:devel/libffi \
 		liblapack.so:math/lapack
 
 USES=		fortran gmake localbase pkgconfig
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	quil-lang
 
 BINARY_ALIAS=	cc=${FILESDIR}/cc \
 		gfortran=gfortran${GCC_DEFAULT} \
 		git=false
 
 PLIST_FILES=	bin/quilc \
 		lib/libexpokit.so
 
 #
 # In order to update dependencies:
 # 1. set MAINTAINER_MODE=yes
 # 2. make clean build
 # 3. set MAINTAINER_MODE=no
 # 4. make clean makesum
 #
 
 MAINTAINER_MODE=	no
 
 .if (${MAINTAINER_MODE} == "yes")
 BUILD_DEPENDS+=	curl:ftp/curl
 
 do-build:
 	# build, download dependencies during build, and save build log with URLs in it
 	@set -e; set -o pipefail; cd ${WRKSRC} && (${SETENV} ${MAKE_ENV} ${MAKE_CMD} ${TARGET_ALL} | tee -a ${WRKDIR}/build.log)
 	# compute Makefile.deps based on URLs in build.log
 	@${FILESDIR}/build-log-to-makefile-deps ${WRKDIR}/build.log > Makefile.deps
 .else
 .  include <Makefile.deps>
 
 MASTER_SITES=	${MASTER_SITES_DEPS}
 DISTFILES=	${DISTFILES_DEPS}
 
 QL_DIR=		${WRKDIR}/quicklisp
 
 post-extract:
 	# create directories
 	@${MKDIR} \
 		${QL_DIR} \
 		${QL_DIR}/dists/quicklisp \
 		${QL_DIR}/dists/quicklisp/software
 	# copy files
 	@${CP} ${DISTDIR}/${DIST_SUBDIR}/asdf.lisp ${QL_DIR}
 	@${CP} ${DISTDIR}/${DIST_SUBDIR}/setup.lisp ${QL_DIR}
 	@${CP} ${DISTDIR}/${DIST_SUBDIR}/releases.txt ${QL_DIR}/dists/quicklisp
 	@${CP} ${DISTDIR}/${DIST_SUBDIR}/systems.txt ${QL_DIR}/dists/quicklisp
 	# extract archives
 	@cd ${QL_DIR} && ${TAR} xf ${DISTDIR}/${DIST_SUBDIR}/quicklisp.tar
 	# extract tarballs
 .  for t in ${DISTFILES_DEPS:C/:.*//:M*.tgz}
 	@cd ${QL_DIR}/dists/quicklisp/software && ${TAR} xzf ${DISTDIR}/${DIST_SUBDIR}/${t}
 .  endfor
 	# fixups: same effect as https://github.com/cffi/cffi/pull/332
 	@${REINPLACE_CMD} -e 's|:openbsd "libffi.so"|:freebsd "libffi.so"|' ${QL_DIR}/dists/quicklisp/software/cffi_0.24.1/libffi/libffi.lisp
 
 post-install:
 	${INSTALL_LIB} ${QL_DIR}/dists/quicklisp/software/magicl-v0.9.1/expokit/libexpokit.so ${STAGEDIR}${PREFIX}/lib
 
 .endif
 
 .include <bsd.port.mk>