diff --git a/source/dub/git.d b/source/dub/git.d
index c6fc9a9..d6f18a1 100644
--- a/source/dub/git.d
+++ b/source/dub/git.d
@@ -22,7 +22,12 @@
 public void addGitSubmodules(PackageManager packageManager, NativePath rootPath) {
 	import std.process : execute;
 
-	const submoduleInfo = execute(["git", "--git-dir=" ~ (rootPath ~ ".git").toNativeString, "submodule", "status"]);
+	auto rootScmPath = rootPath ~ ".git";
+	const submoduleInfo = execute([
+		"git",
+		"-C", rootPath.toNativeString,
+		"--git-dir=" ~ (rootScmPath.relativeTo(rootPath)).toNativeString,
+		"submodule", "status"]);
 
 	enforce(submoduleInfo.status == 0,
 		format("git submodule status exited with error code %s: %s", submoduleInfo.status, submoduleInfo.output));
diff --git a/source/dub/package_.d b/source/dub/package_.d
index 3ec6e3f..28faac4 100644
--- a/source/dub/package_.d
+++ b/source/dub/package_.d
@@ -803,11 +803,15 @@
 // by invoking the "git" executable
 private string determineVersionWithGit(NativePath path, NativePath git_dir)
 {
-	import std.process;
 	import dub.semver;
+	import std.process;
+	import std.typecons : tuple;
 
 	if (!existsFile(git_dir) || !isDir(git_dir.toNativeString)) return null;
-	auto git_dir_param = "--git-dir=" ~ git_dir.toNativeString();
+	auto git_dir_params = tuple(
+		"-C", path.toNativeString(),
+		"--git-dir=" ~ git_dir.relativeTo(path).toNativeString(),
+	).expand;
 
 	static string exec(scope string[] params...) {
 		auto ret = executeShell(escapeShellCommand(params));
@@ -816,7 +820,7 @@
 		return null;
 	}
 
-	auto tag = exec("git", git_dir_param, "describe", "--long", "--tags");
+	auto tag = exec("git", git_dir_params, "describe", "--long", "--tags");
 	if (tag !is null) {
 		auto parts = tag.split("-");
 		auto commit = parts[$-1];
@@ -829,7 +833,7 @@
 		}
 	}
 
-	auto branch = exec("git", git_dir_param, "rev-parse", "--abbrev-ref", "HEAD");
+	auto branch = exec("git", git_dir_params, "rev-parse", "--abbrev-ref", "HEAD");
 	if (branch !is null) {
 		if (branch != "HEAD") return "~" ~ branch;
 	}