diff --git a/srcpkgs/firefox/template b/srcpkgs/firefox/template
index d6a0e239ea..43e556e908 100644
--- a/srcpkgs/firefox/template
+++ b/srcpkgs/firefox/template
@@ -42,6 +42,7 @@ Add_dependency run freetype
 Add_dependency run fontconfig
 Add_dependency run cairo
 Add_dependency build zip
+Add_dependency build perl
 Add_dependency build python
 Add_dependency build glibc-devel
 Add_dependency build alsa-lib-devel