diff --git a/icinga-php-library.spec b/icinga-php-library.spec
index 10989af..aa17132 100644
--- a/icinga-php-library.spec
+++ b/icinga-php-library.spec
@@ -33,6 +33,7 @@ BuildArch:      noarch
 %global basedir %{_datadir}/icinga-php/ipl
 
 Requires:       icinga-php-common
+Requires:       icinga-php-thirdparty
 
 # php extension requirements
 Requires:                   %{php}-intl