diff --git a/math/couenne/Makefile b/math/couenne/Makefile
index 99be2e8d6b7a..ed0986eb2d67 100644
--- a/math/couenne/Makefile
+++ b/math/couenne/Makefile
@@ -1,35 +1,36 @@
 PORTNAME=	couenne
 DISTVERSIONPREFIX=	releases/
 DISTVERSION=	0.5.8
-PORTREVISION=	4
+PORTREVISION=	5
 CATEGORIES=	math
 PKGNAMEPREFIX=	coin-or-
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Convex Over and Under Envelopes for NonliNear Estimation
 
 LICENSE=	EPL
 LICENSE_FILE=	${WRKSRC}/Couenne/LICENSE
 
 BUILD_DEPENDS=	${LOCALBASE}/lib/libnauty.a:math/nauty
 LIB_DEPENDS=	libbonmin.so:math/bonmin \
 		libCbc.so:math/cbc \
 		libCgl.so:math/cgl \
 		libClp.so:math/clp \
+		libcoinasl.so:math/asl \
 		libCoinUtils.so:math/coinutils \
 		libipopt.so:math/ipopt \
 		libopenblas.so:math/openblas
 
 USES=		blaslapack:netlib fortran gmake libtool pkgconfig
 USE_LDCONFIG=	yes
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	coin-or
 GH_PROJECT=	Couenne
 
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--with-nauty-incdir=${LOCALBASE}/include/nauty --with-nauty-lib=${LOCALBASE}/lib/libnauty.a
 
 INSTALL_TARGET=	install-strip
 
 .include <bsd.port.mk>
diff --git a/math/couenne/files/patch-Couenne_src_readnl_readnl.cpp b/math/couenne/files/patch-Couenne_src_readnl_readnl.cpp
new file mode 100644
index 000000000000..6f5585b14f0e
--- /dev/null
+++ b/math/couenne/files/patch-Couenne_src_readnl_readnl.cpp
@@ -0,0 +1,22 @@
+- workaround for the 'filename' macro name clash: https://github.com/coin-or-tools/ThirdParty-ASL/issues/4
+
+--- Couenne/src/readnl/readnl.cpp.orig	2021-05-03 20:42:36 UTC
++++ Couenne/src/readnl/readnl.cpp
+@@ -10,6 +10,8 @@
+ 
+ #include "asl.h"
+ 
++#undef filename
++
+ // Added to avoid compiler issues with gcc 6.2.1 --- see https://github.com/JuliaOpt/CoinOptServices.jl/issues/27#issuecomment-290960312
+ #undef strtod
+ 
+@@ -60,7 +62,7 @@ void createCommonExpr (CouenneProblem *p, const ASL *a
+ // Reads a MINLP from an AMPL .nl file through the ASL methods
+ int CouenneProblem::readnl (const ASL *asl) {
+ 
+-  problemName_ = filename;
++  problemName_ = asl->i.filename_; //filename;
+ 
+   // number of defined variables (aka common expressions)
+   ndefined_ = como + comc + comb + como1 + comc1; 
diff --git a/math/couenne/pkg-plist b/math/couenne/pkg-plist
index 3cf3e6a2eddb..9938131cefc5 100644
--- a/math/couenne/pkg-plist
+++ b/math/couenne/pkg-plist
@@ -1,93 +1,97 @@
+bin/couenne
 include/coin/BonCouenneInfo.hpp
 include/coin/BonCouenneInterface.hpp
 include/coin/BonCouenneSetup.hpp
 include/coin/BonInitHeuristic.hpp
 include/coin/BonNlpHeuristic.hpp
 include/coin/CouExpr.hpp
 include/coin/CouenneAggrProbing.hpp
 include/coin/CouenneBTPerfIndicator.hpp
 include/coin/CouenneBab.hpp
 include/coin/CouenneBranchingObject.hpp
 include/coin/CouenneChooseStrong.hpp
 include/coin/CouenneChooseVariable.hpp
 include/coin/CouenneComplBranchingObject.hpp
 include/coin/CouenneComplObject.hpp
 include/coin/CouenneConfig.h
 include/coin/CouenneCrossConv.hpp
 include/coin/CouenneCutGenerator.hpp
 include/coin/CouenneDepGraph.hpp
 include/coin/CouenneDisjCuts.hpp
 include/coin/CouenneDomain.hpp
 include/coin/CouenneExprAbs.hpp
 include/coin/CouenneExprAux.hpp
 include/coin/CouenneExprBCos.hpp
 include/coin/CouenneExprBDiv.hpp
 include/coin/CouenneExprBMul.hpp
 include/coin/CouenneExprBSin.hpp
 include/coin/CouenneExprBound.hpp
 include/coin/CouenneExprClone.hpp
 include/coin/CouenneExprConst.hpp
 include/coin/CouenneExprCopy.hpp
 include/coin/CouenneExprCos.hpp
 include/coin/CouenneExprDiv.hpp
 include/coin/CouenneExprExp.hpp
 include/coin/CouenneExprGroup.hpp
 include/coin/CouenneExprHess.hpp
 include/coin/CouenneExprIVar.hpp
 include/coin/CouenneExprIf.hpp
 include/coin/CouenneExprInv.hpp
 include/coin/CouenneExprJac.hpp
 include/coin/CouenneExprLog.hpp
 include/coin/CouenneExprMax.hpp
 include/coin/CouenneExprMin.hpp
 include/coin/CouenneExprMul.hpp
 include/coin/CouenneExprNorm.hpp
 include/coin/CouenneExprOp.hpp
 include/coin/CouenneExprOpp.hpp
 include/coin/CouenneExprPWLinear.hpp
 include/coin/CouenneExprPow.hpp
 include/coin/CouenneExprQuad.hpp
 include/coin/CouenneExprSin.hpp
 include/coin/CouenneExprStore.hpp
 include/coin/CouenneExprSub.hpp
 include/coin/CouenneExprSum.hpp
 include/coin/CouenneExprTrilinear.hpp
 include/coin/CouenneExprUnary.hpp
 include/coin/CouenneExprVar.hpp
 include/coin/CouenneExpression.hpp
 include/coin/CouenneFeasPump.hpp
 include/coin/CouenneFixPoint.hpp
 include/coin/CouenneFunTriplets.hpp
 include/coin/CouenneGlobalCutOff.hpp
 include/coin/CouenneJournalist.hpp
 include/coin/CouenneLQelems.hpp
 include/coin/CouenneMINLPInterface.hpp
 include/coin/CouenneMatrix.hpp
 include/coin/CouenneObject.hpp
 include/coin/CouenneOrbitBranchingObj.hpp
 include/coin/CouenneOrbitObj.hpp
 include/coin/CouennePSDcon.hpp
 include/coin/CouennePrecisions.hpp
 include/coin/CouenneProblem.hpp
 include/coin/CouenneProblemElem.hpp
 include/coin/CouenneProjections.hpp
 include/coin/CouenneRecordBestSol.hpp
 include/coin/CouenneRootQ.hpp
 include/coin/CouenneSOSObject.hpp
 include/coin/CouenneSdpCuts.hpp
 include/coin/CouenneSolverInterface.hpp
 include/coin/CouenneTNLP.hpp
 include/coin/CouenneThreeWayBranchObj.hpp
 include/coin/CouenneTwoImplied.hpp
 include/coin/CouenneTypes.hpp
 include/coin/CouenneVTObject.hpp
 include/coin/CouenneVarObject.hpp
 include/coin/Nauty.h
 lib/libCouenne.so
 lib/libCouenne.so.1
 lib/libCouenne.so.1.4.8
+lib/libCouenneReadnl.so
+lib/libCouenneReadnl.so.1
+lib/libCouenneReadnl.so.1.4.8
 libdata/pkgconfig/couenne.pc
 share/coin/doc/Couenne/AUTHORS
 share/coin/doc/Couenne/LICENSE
 share/coin/doc/Couenne/README
 share/coin/doc/Couenne/couenne_addlibs.txt