diff --git a/src/gitutils/_unset.sh b/src/gitutils/_unset.sh
new file mode 100644
index 0000000..d5e2066
--- /dev/null
+++ b/src/gitutils/_unset.sh
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+#### Goto repository root
+cd "$(git rev-parse --show-toplevel)" >/dev/null
+
+echo git config ${2:---local} --get-regexp "^${1:-[a-z]+}\\." 
+
+#### Unset all git config keys starting with the given prefix
+git config ${2:---local} --get-regexp "^${1:-[a-z]+}\\." | cut -d ' ' -f 1 | while read alias_key; do
+     git config ${2:---local} --unset-all "$alias_key"; 
+done
diff --git a/src/gitutils/devcontainer-feature.json b/src/gitutils/devcontainer-feature.json
index ec889e6..d1f655a 100644
--- a/src/gitutils/devcontainer-feature.json
+++ b/src/gitutils/devcontainer-feature.json
@@ -1,7 +1,7 @@
 {
     "name": "Git Aliases",
     "id": "gitutils",
-    "version": "1.2.1",
+    "version": "1.3.0",
     "description": "A feature to add useful Git aliases to your shell.",
     "installsAfter": [
         "ghcr.io/devcontainers/features/common-utils",
@@ -11,4 +11,4 @@
         "ghcr.io/tomgrv/devcontainer-features/gitversion": "5.*"
     },
     "entrypoint": "git init-gitutils"
-}
+}
\ No newline at end of file