diff --git a/scripts/check-sf-extension-inventory.mjs b/scripts/check-sf-extension-inventory.mjs
index 891e6d4f7..7a14c7f94 100644
--- a/scripts/check-sf-extension-inventory.mjs
+++ b/scripts/check-sf-extension-inventory.mjs
@@ -84,6 +84,7 @@ function failSection(title, values) {
 }
 
 function ignoredResourceSources() {
+	if (!existsSync(join(repoRoot, ".git"))) return [];
 	const output = execFileSync(
 		"git",
 		[
@@ -102,6 +103,7 @@ function ignoredResourceSources() {
 }
 
 function untrackedResourceSources() {
+	if (!existsSync(join(repoRoot, ".git"))) return [];
 	const output = execFileSync(
 		"git",
 		["ls-files", "-o", "--exclude-standard", "src/resources/extensions/**"],