diff --git a/src/compiler/transformers/declarations.ts b/src/compiler/transformers/declarations.ts
index 4d87f8255e5..8c3f843bf18 100644
--- a/src/compiler/transformers/declarations.ts
+++ b/src/compiler/transformers/declarations.ts
@@ -330,7 +330,7 @@ namespace ts {
                         const specifier = moduleSpecifiers.getModuleSpecifier(
                             // We pathify the baseUrl since we pathify the other paths here, so we can still easily check if the other paths are within the baseUrl
                             // TODO: Should we _always_ be pathifying the baseUrl as we read it in?
-                            {...options, baseUrl: options.baseUrl && toPath(options.baseUrl, host.getCurrentDirectory(), host.getCanonicalFileName)},
+                            { ...options, baseUrl: options.baseUrl && toPath(options.baseUrl, host.getCurrentDirectory(), host.getCanonicalFileName) },
                             currentSourceFile,
                             toPath(outputFilePath, host.getCurrentDirectory(), host.getCanonicalFileName),
                             toPath(declFileName, host.getCurrentDirectory(), host.getCanonicalFileName),