diff --git a/var/spack/repos/builtin/packages/git/package.py b/var/spack/repos/builtin/packages/git/package.py
index c77c1fa916d..1bd236051a7 100644
--- a/var/spack/repos/builtin/packages/git/package.py
+++ b/var/spack/repos/builtin/packages/git/package.py
@@ -178,6 +178,7 @@ class Git(AutotoolsPackage):
     depends_on('expat')
     depends_on('gettext')
     depends_on('libiconv')
+    depends_on('libidn2')
     depends_on('openssl')
     depends_on('pcre', when='@:2.13')
     depends_on('pcre2', when='@2.14:')