diff --git a/perl-Syntax-Keyword-Defer.spec b/perl-Syntax-Keyword-Defer.spec
index 390b3dc..c391e82 100644
--- a/perl-Syntax-Keyword-Defer.spec
+++ b/perl-Syntax-Keyword-Defer.spec
@@ -1,6 +1,13 @@
 # Perform optional tests
 %bcond_without perl_Syntax_Keyword_Defer_enables_optional_test
 
+# A build cycle: perl-Syntax-Keyword-Try → perl-Syntax-Keyword-Defer
+%if %{with perl_Syntax_Keyword_Defer_enables_optional_test} && !%{defined perl_bootstrap}
+%define optional_tests 1
+%else
+%define optional_tests 0
+%endif
+
 Name:           perl-Syntax-Keyword-Defer
 Version:        0.06
 Release:        1%{?dist}
@@ -29,7 +36,7 @@ BuildRequires:  perl(XSLoader)
 # feature since Perl 5.33.7
 BuildRequires:  perl(feature)
 BuildRequires:  perl(Test::More) >= 0.88
-%if %{with perl_Syntax_Keyword_Defer_enables_optional_test} 
+%if %{optional_tests}
 # Optional tests:
 BuildRequires:  perl(Future)
 BuildRequires:  perl(Future::AsyncAwait) >= 0.50
@@ -63,7 +70,7 @@ Requires:       %{name} = %{?epoch:%{epoch}:}%{version}-%{release}
 Requires:       perl-Test-Harness
 Requires:       perl(feature)
 Requires:       perl(Test::More) >= 0.88
-%if %{with perl_Syntax_Keyword_Defer_enables_optional_test} 
+%if %{optional_tests}
 Requires:       perl(Future)
 Requires:       perl(Future::AsyncAwait) >= 0.50
 Requires:       perl(Syntax::Keyword::Try) >= 0.18
@@ -75,7 +82,7 @@ with "%{_libexecdir}/%{name}/test".
 
 %prep
 %setup -q -n Syntax-Keyword-Defer-%{version}
-%if !%{with perl_Syntax_Keyword_Defer_enables_optional_test} 
+%if !%{optional_tests}
 for F in t/80await+defer.t t/80defer+SKT.t t/99pod.t; do
     rm "$F"
     perl -i -ne 'print $_ unless m{\A\Q'"$F"'\E\b}' MANIFEST
@@ -94,7 +101,7 @@ find %{buildroot} -type f -name '*.bs' -size 0 -delete
 # Install tests
 mkdir -p %{buildroot}%{_libexecdir}/%{name}
 cp -a t %{buildroot}%{_libexecdir}/%{name}
-%if %{with perl_Syntax_Keyword_Defer_enables_optional_test} 
+%if %{optional_tests}
 rm %{buildroot}%{_libexecdir}/%{name}/t/99pod.t
 %endif
 cat > %{buildroot}%{_libexecdir}/%{name}/test << 'EOF'