diff --git a/normaliz-codimension.patch b/normaliz-codimension.patch
new file mode 100644
index 0000000..87712aa
--- /dev/null
+++ b/normaliz-codimension.patch
@@ -0,0 +1,11 @@
+--- source/libnormaliz/cone.cpp.orig	2019-09-09 02:59:49.000000000 -0600
++++ source/libnormaliz/cone.cpp	2019-09-27 08:24:04.445490717 -0600
+@@ -7337,7 +7337,7 @@ void Cone<Integer>::make_face_lattice(co
+ 
+         if(ToCompute.test(ConeProperty::FaceLattice))
+             for(auto H=WorkFaces.begin();H!=WorkFaces.end();++H)
+-                FaceLattice[H->first]=codimension_so_far;
++                FaceLattice[H->first]=codimension_so_far - 1;
+         WorkFaces.clear();
+         if(NewFaces.empty())
+             break;
diff --git a/normaliz.spec b/normaliz.spec
index b7b12fd..923fce8 100644
--- a/normaliz.spec
+++ b/normaliz.spec
@@ -1,6 +1,6 @@
 Name:           normaliz
 Version:        3.8.0
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        A tool for mathematical computations
 
 License:        GPLv3+
@@ -8,6 +8,8 @@ URL:            https://www.normaliz.uni-osnabrueck.de/
 Source0:        https://github.com/Normaliz/Normaliz/releases/download/v%{version}/%{name}-%{version}.tar.gz
 # Fix a sequence point error
 Patch0:         %{name}-seqpoint.patch
+# Upstream fix for an off-by-one error
+Patch1:         %{name}-codimension.patch
 
 BuildRequires:  boost-devel
 BuildRequires:  cocoalib-devel
@@ -100,6 +102,9 @@ cp -p source/libnormaliz/output.h %{buildroot}%{_includedir}/libnormaliz
 %{_includedir}/libnormaliz/
 
 %changelog
+* Fri Sep 27 2019 Jerry James <loganjerry@gmail.com> - 3.8.0-2
+- Add -codimension patch from upstream
+
 * Tue Sep 24 2019 Jerry James <loganjerry@gmail.com> - 3.8.0-1
 - New upstream release
 - Add -seqpoint patch