diff --git a/libphonon4.spec b/libphonon4.spec
index 0e3e468..681a9af 100644
--- a/libphonon4.spec
+++ b/libphonon4.spec
@@ -1,6 +1,6 @@
 Name:          libphonon4
-Version:       4.10.2
-Release:       2mamba
+Version:       4.10.3
+Release:       1mamba
 Summary:       Multimedia API for KDE4
 Group:         System/Libraries
 Vendor:        openmamba
@@ -17,7 +17,9 @@ BuildRequires: libgcc
 BuildRequires: libpulseaudio-devel
 BuildRequires: libpulseaudio-glib-devel
 BuildRequires: libqt4-devel
+%ifnarch aarch64
 BuildRequires: libqzeitgeist-devel
+%endif
 BuildRequires: libstdc++6-devel
 ## AUTOBUILDREQ-END
 BuildRequires: cmake
@@ -58,16 +60,23 @@ This package contains the libphonon widgets for Qt Designer.
 %setup -q -n phonon-%{version}
 
 %build
-# NOTE: using rpm % cmake macro causes problems with paths
-mkdir build
-cd build
-cmake .. \
+%cmake -d build \
+    -DPHONON_INSTALL_QT_EXTENSIONS_INTO_SYSTEM_QT=ON \
+    -DQT_QMAKE_EXECUTABLE=/usr/bin/qmake-qt4 \
+
+:<< _OLD
+.. \
     -DCMAKE_INSTALL_PREFIX:PATH=%{_prefix} \
+%ifarch x86_64 aarch64
+   -DLIB_SUFFIX=64 \
+%endif
     -DCMAKE_BUILD_TYPE=Release \
     -DCMAKE_SKIP_RPATH=ON \
     -DPHONON_INSTALL_QT_EXTENSIONS_INTO_SYSTEM_QT=ON \
     -DQT_QMAKE_EXECUTABLE=/usr/bin/qmake-qt4 \
 
+_OLD
+
 %make
 
 %install
@@ -109,6 +118,9 @@ cmake .. \
 %{_libdir}/qt4/plugins/designer/libphononwidgets.so
 
 %changelog
+* Tue Jan 19 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 4.10.3-1mamba
+- update to 4.10.3
+
 * Thu Jan 02 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 4.10.2-2mamba
 - qt4 legacy package