diff --git a/perl-Devel-ArgNames.spec b/perl-Devel-ArgNames.spec
index e20d8cd..ec43680 100644
--- a/perl-Devel-ArgNames.spec
+++ b/perl-Devel-ArgNames.spec
@@ -10,6 +10,7 @@ BuildRequires:  coreutils
 BuildRequires:  make
 BuildRequires:  perl-generators
 BuildRequires:  perl-interpreter
+BuildRequires:  perl(Config)
 BuildRequires:  perl(ExtUtils::MakeMaker) >= 6.76
 BuildRequires:  perl(strict)
 # Run-time:
@@ -40,6 +41,11 @@ with "%{_libexecdir}/%{name}/test".
 
 %prep
 %setup -q -n Devel-ArgNames-%{version}
+# Help generators to recognize Perl scripts
+for F in t/*.t; do
+    perl -i -MConfig -ple 'print $Config{startperl} if $. == 1 && !s{\A#!\s*perl}{$Config{startperl}}' "$F"
+    chmod +x "$F"
+done
 
 %build
 perl Makefile.PL INSTALLDIRS=vendor NO_PACKLIST=1 NO_PERLLOCAL=1