diff --git a/srcpkgs/crystal/template b/srcpkgs/crystal/template
index 02980f96358..47a09ee40b1 100644
--- a/srcpkgs/crystal/template
+++ b/srcpkgs/crystal/template
@@ -6,7 +6,7 @@ archs="x86_64* i686* aarch64* arm*"
 _shardsversion=0.9.0
 _bootstrapversion=0.32.1
 _bootstraprevision=1
-hostmakedepends="tar git llvm8 pkg-config"
+hostmakedepends="which tar git llvm8 pkg-config"
 makedepends="gc-devel libatomic_ops pcre-devel libevent-devel libyaml-devel
  libxml2-devel"
 depends="gc-devel libatomic_ops pcre-devel libevent-devel libyaml-devel