diff --git a/README.md b/README.md
index 2183541..c95b280 100644
--- a/README.md
+++ b/README.md
@@ -93,6 +93,10 @@ See [#108](https://github.com/ezolenko/rollup-plugin-typescript2/issues/108)
 
 ### Plugin options
 
+* `cwd`: `string`
+
+    The current work directory, default `process.cwd()`.
+
 * `tsconfigDefaults`: `{}`
 
 	The object passed as `tsconfigDefaults` will be merged with loaded `tsconfig.json`. Final config passed to typescript will be the result of values in `tsconfigDefaults` replaced by values in loaded `tsconfig.json`, replaced by values in `tsconfigOverride` and then replaced by hard `compilerOptions` overrides on top of that (see above).
diff --git a/src/get-options-overrides.ts b/src/get-options-overrides.ts
index 322e2a8..99e7c1f 100644
--- a/src/get-options-overrides.ts
+++ b/src/get-options-overrides.ts
@@ -8,7 +8,7 @@ import { IContext } from "./context";
 // tslint:disable-next-line:no-var-requires
 const createRollupFilter = require("rollup-pluginutils").createFilter;
 
-export function getOptionsOverrides({ useTsconfigDeclarationDir, cacheRoot }: IOptions, preParsedTsconfig?: tsTypes.ParsedCommandLine): tsTypes.CompilerOptions
+export function getOptionsOverrides({ useTsconfigDeclarationDir, cacheRoot, cwd }: IOptions, preParsedTsconfig?: tsTypes.ParsedCommandLine): tsTypes.CompilerOptions
 {
 	const overrides: tsTypes.CompilerOptions = {
 		noEmitHelpers: false,
@@ -30,7 +30,7 @@ export function getOptionsOverrides({ useTsconfigDeclarationDir, cacheRoot }: IO
 		if (!declaration)
 			overrides.declarationDir = undefined;
 		if (declaration && !useTsconfigDeclarationDir)
-			overrides.declarationDir = process.cwd();
+			overrides.declarationDir = cwd;
 
 		// unsetting sourceRoot if sourceMap is not enabled (in case original tsconfig had inlineSourceMap set that is being unset and would cause TS5051)
 		const sourceMap = preParsedTsconfig.options.sourceMap;
diff --git a/src/host.ts b/src/host.ts
index 006c939..a6f7f92 100644
--- a/src/host.ts
+++ b/src/host.ts
@@ -6,15 +6,16 @@ import { TransformerFactoryCreator } from "./ioptions";
 
 export class LanguageServiceHost implements tsTypes.LanguageServiceHost
 {
-	private cwd = process.cwd();
+	private cwd: string;
 	private snapshots: { [fileName: string]: tsTypes.IScriptSnapshot } = {};
 	private versions: { [fileName: string]: number } = {};
 	private service?: tsTypes.LanguageService;
 	private fileNames: Set<string>;
 
-	constructor(private parsedConfig: tsTypes.ParsedCommandLine, private transformers: TransformerFactoryCreator[])
+	constructor(private parsedConfig: tsTypes.ParsedCommandLine, private transformers: TransformerFactoryCreator[], cwd: string)
 	{
 		this.fileNames = new Set(parsedConfig.fileNames);
+		this.cwd = cwd;
 	}
 
 	public reset()
diff --git a/src/index.ts b/src/index.ts
index a92e475..db026f6 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -60,6 +60,7 @@ const typescript: PluginImpl<Partial<IOptions>> = (options) =>
 			transformers: [],
 			tsconfigDefaults: {},
 			objectHashIgnoreUnknownHack: false,
+			cwd: process.cwd(),
 		});
 
 	if (!pluginOptions.typescript) {
@@ -103,7 +104,7 @@ const typescript: PluginImpl<Partial<IOptions>> = (options) =>
 
 			filter = createFilter(context, pluginOptions, parsedConfig);
 
-			servicesHost = new LanguageServiceHost(parsedConfig, pluginOptions.transformers);
+			servicesHost = new LanguageServiceHost(parsedConfig, pluginOptions.transformers, pluginOptions.cwd);
 
 			service = tsModule.createLanguageService(servicesHost, tsModule.createDocumentRegistry());
 			servicesHost.setLanguageService(service);
@@ -357,7 +358,8 @@ const typescript: PluginImpl<Partial<IOptions>> = (options) =>
 				}
 				else
 {
-					const relativePath = relative(process.cwd(), fileName);
+					const relativePath = relative(pluginOptions.cwd, fileName);
+					console.log('>>> DEBUG2', pluginOptions.cwd, relativePath, fileName);
 					context.debug(() => `${blue("emitting declarations")} for '${key}' to '${relativePath}'`);
 					this.emitFile({
 						type: "asset",
@@ -367,6 +369,7 @@ const typescript: PluginImpl<Partial<IOptions>> = (options) =>
 				}
 			};
 
+			console.log('>>> DEBUG', 'declarations', declarations);
 			_.each(declarations, ({ type, map }, key) =>
 			{
 				emitDeclaration(key, ".d.ts", type);
diff --git a/src/ioptions.ts b/src/ioptions.ts
index d7cfd12..5fe3b6e 100644
--- a/src/ioptions.ts
+++ b/src/ioptions.ts
@@ -12,6 +12,7 @@ export type TransformerFactoryCreator = (ls: tsTypes.LanguageService) => tsTypes
 
 export interface IOptions
 {
+	cwd: string;
 	include: string|string[];
 	exclude: string|string[];
 	check: boolean;
diff --git a/src/parse-tsconfig.ts b/src/parse-tsconfig.ts
index 6fc1974..cd5a6b3 100644
--- a/src/parse-tsconfig.ts
+++ b/src/parse-tsconfig.ts
@@ -10,14 +10,14 @@ import { checkTsConfig } from "./check-tsconfig";
 
 export function parseTsConfig(context: IContext, pluginOptions: IOptions)
 {
-	const fileName = tsModule.findConfigFile(process.cwd(), tsModule.sys.fileExists, pluginOptions.tsconfig);
+	const fileName = tsModule.findConfigFile(pluginOptions.cwd, tsModule.sys.fileExists, pluginOptions.tsconfig);
 
 	// if the value was provided, but no file, fail hard
 	if (pluginOptions.tsconfig !== undefined && !fileName)
 		throw new Error(`failed to open '${fileName}'`);
 
 	let loadedConfig: any = {};
-	let baseDir = process.cwd();
+	let baseDir = pluginOptions.cwd;
 	let configFileName;
 	let pretty = false;
 	if (fileName)