diff --git a/package/udftools/udftools.mk b/package/udftools/udftools.mk
index 708fef9ab7..2d3477a51c 100644
--- a/package/udftools/udftools.mk
+++ b/package/udftools/udftools.mk
@@ -8,5 +8,6 @@ UDFTOOLS_VERSION = 2.0
 UDFTOOLS_SITE = https://github.com/pali/udftools/releases/download/$(UDFTOOLS_VERSION)
 UDFTOOLS_LICENSE = GPL-2.0+
 UDFTOOLS_LICENSE_FILES = COPYING
+UDFTOOLS_DEPENDENCIES = readline
 
 $(eval $(autotools-package))