diff --git a/gcc.spec.in b/gcc.spec.in
index 323944e..33bc3b8 100644
--- a/gcc.spec.in
+++ b/gcc.spec.in
@@ -679,9 +679,11 @@ Summary:      GNU Ada Runtime Libraries
 License:      GPL-3.0 WITH GCC-exception-3.1
 Group:        System/Libraries
 Provides: libgnarl-@base_ver@@variant@ = %{version}-%{release}
-Conflicts: %selfconflict libgnarl-@base_ver@@variant@
+# FIXME: remove %{after} service-format_spec_file is fixed
+# https://github.com/openSUSE/obs-service-format_spec_file/issues/46
+Conflicts:	%selfconflict libgnarl-@base_ver@@variant@%{nil}
 Provides: libgnat-@base_ver@@variant@ = %{version}-%{release}
-Conflicts: %selfconflict libgnat-@base_ver@@variant@
+Conflicts:	%selfconflict libgnat-@base_ver@@variant@%{nil}
 
 %description -n libada@base_ver@@variant@
 This package contains the shared libraries required to run programs
diff --git a/gcc11.spec b/gcc11.spec
index db6adec..2ab9c76 100644
--- a/gcc11.spec
+++ b/gcc11.spec
@@ -951,11 +951,11 @@ Summary:        GNU Ada Runtime Libraries
 License:        GPL-3.0-only WITH GCC-exception-3.1
 Group:          System/Libraries
 Provides:       libgnarl-11 = %{version}-%{release}
-Conflicts:      %selfconflict
-Conflicts:      libgnarl-11
+# FIXME: remove %{after} service-format_spec_file is fixed
+# https://github.com/openSUSE/obs-service-format_spec_file/issues/46
+Conflicts:      %selfconflict libgnarl-11%{nil}
 Provides:       libgnat-11 = %{version}-%{release}
-Conflicts:      %selfconflict
-Conflicts:      libgnat-11
+Conflicts:      %selfconflict libgnat-11%{nil}
 
 %description -n libada11
 This package contains the shared libraries required to run programs
@@ -974,11 +974,11 @@ Summary:        GNU Ada Runtime Libraries
 License:        GPL-3.0-only WITH GCC-exception-3.1
 Group:          System/Libraries
 Provides:       libgnarl-11-32bit = %{version}-%{release}
-Conflicts:      %selfconflict
-Conflicts:      libgnarl-11-32bit
+# FIXME: remove %{after} service-format_spec_file is fixed
+# https://github.com/openSUSE/obs-service-format_spec_file/issues/46
+Conflicts:      %selfconflict libgnarl-11-32bit%{nil}
 Provides:       libgnat-11-32bit = %{version}-%{release}
-Conflicts:      %selfconflict
-Conflicts:      libgnat-11-32bit
+Conflicts:      %selfconflict libgnat-11-32bit%{nil}
 
 %description -n libada11-32bit
 This package contains the shared libraries required to run programs
@@ -997,11 +997,11 @@ Summary:        GNU Ada Runtime Libraries
 License:        GPL-3.0-only WITH GCC-exception-3.1
 Group:          System/Libraries
 Provides:       libgnarl-11-64bit = %{version}-%{release}
-Conflicts:      %selfconflict
-Conflicts:      libgnarl-11-64bit
+# FIXME: remove %{after} service-format_spec_file is fixed
+# https://github.com/openSUSE/obs-service-format_spec_file/issues/46
+Conflicts:      %selfconflict libgnarl-11-64bit%{nil}
 Provides:       libgnat-11-64bit = %{version}-%{release}
-Conflicts:      %selfconflict
-Conflicts:      libgnat-11-64bit
+Conflicts:      %selfconflict libgnat-11-64bit%{nil}
 
 %description -n libada11-64bit
 This package contains the shared libraries required to run programs