diff --git a/.gitconfig.linux.private b/.gitconfig.linux.private
index 84177eeb..79425de3 100644
--- a/.gitconfig.linux.private
+++ b/.gitconfig.linux.private
@@ -12,3 +12,5 @@
 [mergetool "sourcetree"]
 	cmd = /Applications/Sourcetree.app/Contents/Resources/opendiff-w.sh \"$LOCAL\" \"$REMOTE\" -ancestor \"$BASE\" -merge \"$MERGED\"
 	trustExitCode = true
+[gpg]
+	program = gpg2