diff --git a/kgb-bot.spec b/kgb-bot.spec
index 433c08a..3e74065 100644
--- a/kgb-bot.spec
+++ b/kgb-bot.spec
@@ -77,6 +77,8 @@ BuildRequires:  perl(YAML)
 # Optional run-time:
 BuildRequires:  perl(WWW::Shorten)
 # Tests:
+# IPC::System::Simple is needed for autodie ':all'
+BuildRequires:  perl(IPC::System::Simple)
 BuildRequires:  perl(File::Spec::Functions)
 BuildRequires:  perl(File::Temp)
 BuildRequires:  perl(IO::File)