diff --git a/perl-IO-CaptureOutput.spec b/perl-IO-CaptureOutput.spec
index f4afba3..d788b42 100644
--- a/perl-IO-CaptureOutput.spec
+++ b/perl-IO-CaptureOutput.spec
@@ -35,7 +35,7 @@ BuildRequires:  perl(IO::File)
 BuildRequires:  perl(Test::More) >= 0.62
 # Optional test:
 %if %{with perl_IO_CaptureOutput_enables_optional_test}
-#BuildRequires:  perl(Inline::C)
+BuildRequires:  perl(Inline::C)
 %endif
 # Dependencies:
 # (none)