diff --git a/dot_gitconfig b/dot_gitconfig
index a6e4dcd..d0e51d9 100644
--- a/dot_gitconfig
+++ b/dot_gitconfig
@@ -44,6 +44,13 @@
 [gpg]
 	program = gpg
 
+# tangled.sh / tangled.org only verify SSH commit signatures, not GPG.
+# Override signing format for any repo with a tangled remote.
+[includeIf "hasconfig:remote.*.url:**tangled.sh**"]
+	path = ~/.gitconfig-tangled
+[includeIf "hasconfig:remote.*.url:**tangled.org**"]
+	path = ~/.gitconfig-tangled
+
 [color "diff"]
 	whitespace = red reverse
 
diff --git a/dot_gitconfig-tangled b/dot_gitconfig-tangled
new file mode 100644
index 0000000..4b15d86
--- /dev/null
+++ b/dot_gitconfig-tangled
@@ -0,0 +1,5 @@
+[gpg]
+	format = ssh
+
+[user]
+	signingkey = /Users/till/.ssh/id_rsa.pub