diff --git a/sys-apps/which/which-2.20.recipe b/sys-apps/which/which-2.20.recipe
index 3eb419671..bc48528a1 100644
--- a/sys-apps/which/which-2.20.recipe
+++ b/sys-apps/which/which-2.20.recipe
@@ -22,6 +22,7 @@ BUILD_PREREQUIRES="
 	haiku_devel >= $haikuVersion
 	cmd:gcc
 	cmd:make
+	cmd:sed
 "
 
 BUILD()