diff --git a/libical.spec b/libical.spec
index 4ac2c32..b604102 100644
--- a/libical.spec
+++ b/libical.spec
@@ -13,6 +13,7 @@ BuildRequires:	bison, byacc, flex
 BuildRequires:	cmake
 BuildRequires:	pkgconfig(icu-i18n)
 BuildRequires:	pkgconfig(icu-uc)
+BuildRequires:	perl
 Requires:	tzdata
 
 %description