diff --git a/libguile.spec b/libguile.spec
index 27f4ab6..80b011e 100644
--- a/libguile.spec
+++ b/libguile.spec
@@ -1,7 +1,7 @@
 %define majversion %(echo %version | cut -d. -f 1-2)
 Name:          libguile
 Version:       2.2.6
-Release:       1mamba
+Release:       2mamba
 Summary:       A GNU implementation of Scheme for application extensibility
 Group:         Development/Applications
 Vendor:        openmamba
@@ -11,7 +11,6 @@ URL:           http://www.gnu.org/software/guile/guile.html
 Source:        http://ftp.gnu.org/gnu/guile/guile-%{version}.tar.xz
 Patch0:        libguile-2.0.11-arm-asm.patch
 License:       LGPL
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
 BuildRequires: libffi-devel
@@ -26,9 +25,10 @@ BuildRequires: libunistring-devel >= 0.9.6-1mamba
 BuildRequires: pkg-config
 BuildRequires: slib >= 3b3
 Requires(post):%{__install_info}
-Provides:      guile = %{?epoch:%epoch:}%{version}-%{release}
-Requires(post):slib >= 3b3
+Provides:      guile
 Obsoletes:     guile
+Requires(post):slib >= 3b3
+BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 GUILE (GNU's Ubiquitous Intelligent Language for Extension) is a library implementation of the Scheme programming language, written in C.
@@ -40,7 +40,7 @@ Install the guile package if you'd like to add extensibility to programs that yo
 Summary:       Libraries and header files for the GUILE extensibility library.
 Group:         Development/Libraries
 Requires:      %{name} = %{?epoch:%epoch:}%{version}-%{release}
-Provides:      %{name}-devel = %{?epoch:%epoch:}%{version}-%{release}
+Provides:      guile-devel
 Obsoletes:     guile-devel
 
 %description devel
@@ -191,6 +191,9 @@ fi
 #%doc ChangeLog GUILE-VERSION HACKING NEWS.bz2 README
 
 %changelog
+* Tue Jan 28 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 2.2.6-2mamba
+- remove version in provides/obsoletes for guile and guile-devel (attempt to fix dnf upgrade error on arm)
+
 * Wed Jul 10 2019 Automatic Build System <autodist@mambasoft.it> 2.2.6-1mamba
 - automatic version update by autodist