diff --git a/gstreamer.spec b/gstreamer.spec
index 9b428c0..0c54af8 100644
--- a/gstreamer.spec
+++ b/gstreamer.spec
@@ -5,7 +5,7 @@
 
 Name:          gstreamer
 Version:       1.20.1
-Release:       1mamba
+Release:       2mamba
 Epoch:         2
 Summary:       A framework for streaming media
 Group:         System/Libraries
@@ -65,7 +65,7 @@ Requires:      %{libname} = %{?epoch:%epoch:}%{version}-%{release}
 %description -n %{libname}-devel
 GStreamer is a library that allows the construction of graphs of media-handling components, ranging from simple Ogg/Vorbis playback to complex audio (mixing) and video (non-linear editing) processing.  Applications can take advantage of advances in codec and filter technology transparently.
 Developers can add new codecs and filters by writing a simple plugin with a clean, generic interface.
-This package contains static libraries and header files need for development.
+This package contains static libraries and header files needed for development.
 
 %package -n %{libname}-apidocs
 Summary:       GStreamer library API documentation
@@ -80,6 +80,9 @@ GStreamer library API documentation.
 %prep
 %setup -q -n gstreamer-%{version}
 #-D -T
+%ifarch x86_64 aarch64
+sed -i "s|/libexec'|/libexec64'|" meson.build
+%endif
 
 %build
 #:<< _EOF
@@ -153,6 +156,9 @@ GStreamer library API documentation.
 #%{_datadir}/gtk-doc/html/gstreamer-plugins-%{MAJversion}.0/
 
 %changelog
+* Thu Apr 21 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 1.20.1-2mamba
+- fix libexecdir in pkg-config file
+
 * Wed Mar 16 2022 Automatic Build System <autodist@mambasoft.it> 1.20.1-1mamba
 - automatic version update by autodist