diff --git a/SOURCES/0001-docs-remove-generation-of-Last-updated-field.patch b/SOURCES/0001-docs-remove-generation-of-Last-updated-field.patch
new file mode 100644
index 0000000..72f5a56
--- /dev/null
+++ b/SOURCES/0001-docs-remove-generation-of-Last-updated-field.patch
@@ -0,0 +1,30 @@
+From 505cbc9ba972000ce70001ca520b95ff469c3050 Mon Sep 17 00:00:00 2001
+From: Antonio Cardace <acardace@redhat.com>
+Date: Tue, 18 Aug 2020 13:06:52 +0200
+Subject: [PATCH] docs: remove generation of "Last updated" field
+
+The generation of this field would make the resulting Tcl.html different between builds,
+as it records the time of generation, remove this as it causes jimtcl packages for different
+arches to have a file conflict on Tcl.html
+
+Resolves: #1853148
+---
+ Makefile.in | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/Makefile.in b/Makefile.in
+index a803b07..59f349e 100644
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -203,7 +203,7 @@ zlib.so: jim-zlib.c
+ 	$(CC) $(CFLAGS) $(LDFLAGS) $(SHOBJ_LDFLAGS) -o $@ jim-zlib.o $(SH_LIBJIM) @LDLIBS_zlib@
+ 
+ Tcl.html: jim_tcl.txt
+-	@tclsh@ @srcdir@/make-index $> $^ | asciidoc -o $@ -d manpage - || cp @srcdir@/Tcl_shipped.html Tcl.html
++	@tclsh@ @srcdir@/make-index $> $^ | asciidoc --attribute footer-style=none -o $@ -d manpage - || cp @srcdir@/Tcl_shipped.html Tcl.html
+ 
+ clean:
+ 	rm -f *.o *.so *.dll *.exe lib*.a $(JIMSH) $(LIBJIM) Tcl.html _*.c
+-- 
+2.26.2
+
diff --git a/SPECS/jimtcl.spec b/SPECS/jimtcl.spec
index bdd7e0f..1ee37e1 100644
--- a/SPECS/jimtcl.spec
+++ b/SPECS/jimtcl.spec
@@ -3,7 +3,7 @@
 
 Name:           jimtcl
 Version:        0.77
-Release:        5%{?dist}
+Release:        6%{?dist}
 Summary:        A small embeddable Tcl interpreter
 
 License:        BSD
@@ -11,6 +11,7 @@ Group:          Development/Languages
 URL:            http://jim.tcl.tk
 Source0:        https://github.com/msteveb/%{name}/archive/%{commit}/%{name}-%{version}-%{shortcommit}.tar.gz
 Patch0:         jimtcl-fix_doc_paths.patch
+Patch1:         0001-docs-remove-generation-of-Last-updated-field.patch
 
 BuildRequires:  asciidoc
 
@@ -33,6 +34,7 @@ developing applications that use %{name}.
 %prep
 %setup -qn %{name}-%{commit}
 %patch0
+%patch1 -p1
 
 rm -rf sqlite3
 
@@ -57,6 +59,15 @@ rm -rf %{buildroot}/%{_libdir}/jim/tcltest.tcl
 pushd %{buildroot}/%{_libdir}/
 ln -s libjim.so.* libjim.so
 popd
+pushd %{buildroot}/%{_bindir}/
+mv build-jim-ext build-jim-ext-%{_arch}
+cat > build-jim-ext << 'EOF'
+#!/bin/sh
+
+exec %{_bindir}/build-jim-ext-$(uname -m) "$@"
+EOF
+chmod +x build-jim-ext
+popd
 
 %post -p /sbin/ldconfig
 
@@ -71,9 +82,13 @@ popd
 %doc DEVELOPING README.extensions README.metakit README.namespaces README.oo README.utf-8 STYLE
 %{_includedir}/*
 %{_bindir}/build-jim-ext
+%{_bindir}/build-jim-ext-%{_arch}
 %{_libdir}/libjim.so
 
 %changelog
+* Tue Aug 18 2020 Antonio Cardace <acardace@redhat.com> - 0.77-6
+- Removed multilib packages file conflicts (rh #1853148)
+
 * Wed Feb 07 2018 Fedora Release Engineering <releng@fedoraproject.org> - 0.77-5
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild