diff --git a/src/index.ts b/src/index.ts
index 36b42c0..336f282 100755
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,2 +1,2 @@
-export * from './lib/ooxast-util-get-pstyle'
-export * from './lib/ooxast-util-get-rstyle'
+export * from './lib/ooxast-util-get-pstyle.js'
+export * from './lib/ooxast-util-get-rstyle.js'
diff --git a/src/lib/ooxast-util-get-pstyle.spec.ts b/src/lib/ooxast-util-get-pstyle.spec.ts
index 6ce2e94..ddcd39b 100755
--- a/src/lib/ooxast-util-get-pstyle.spec.ts
+++ b/src/lib/ooxast-util-get-pstyle.spec.ts
@@ -1,5 +1,5 @@
 import { P, PPr, R } from 'ooxast'
-import { getPStyle } from './ooxast-util-get-pstyle'
+import { getPStyle } from './ooxast-util-get-pstyle.js'
 
 export const test: any = {
   type: 'element',
diff --git a/src/lib/ooxast-util-get-rstyle.spec.ts b/src/lib/ooxast-util-get-rstyle.spec.ts
index 149da0d..6ca808b 100755
--- a/src/lib/ooxast-util-get-rstyle.spec.ts
+++ b/src/lib/ooxast-util-get-rstyle.spec.ts
@@ -1,5 +1,5 @@
 import { P, PPr, R } from 'ooxast'
-import { getPStyle } from './ooxast-util-get-pstyle'
+import { getPStyle } from './ooxast-util-get-pstyle.js'
 
 export const test: any = {
   type: 'element',