diff --git a/packages/libidn/build.sh b/packages/libidn/build.sh
index 7ce2cafc8..174232a10 100644
--- a/packages/libidn/build.sh
+++ b/packages/libidn/build.sh
@@ -2,6 +2,7 @@ TERMUX_PKG_HOMEPAGE=http://www.gnu.org/software/libidn/
 TERMUX_PKG_DESCRIPTION="GNU Libidn library, implementation of IETF IDN specifications"
 TERMUX_PKG_VERSION=1.33
 TERMUX_PKG_SRCURL=https://mirrors.kernel.org/gnu/libidn/libidn-${TERMUX_PKG_VERSION}.tar.gz
+TERMUX_PKG_SHA256=44a7aab635bb721ceef6beecc4d49dfd19478325e1b47f3196f7d2acc4930e19
 # Remove the idn tool for now, add it as subpackage if desired::
 TERMUX_PKG_RM_AFTER_INSTALL="bin/idn share/man/man1/idn.1 share/emacs"
 TERMUX_PKG_EXTRA_CONFIGURE_ARGS="--disable-ld-version-script"