diff --git a/src/index.js b/src/index.js
index b91cf7231d..3c4ee5408d 100644
--- a/src/index.js
+++ b/src/index.js
@@ -321,6 +321,8 @@ export {
   VariablesInAllowedPositionRule,
 } from './validation';
 
+export type { ValidationRule } from './validation';
+
 // Create, format, and print GraphQL errors.
 export { GraphQLError, formatError, printError } from './error';
 
diff --git a/src/validation/index.js b/src/validation/index.js
index 5bd949765e..61b0b36004 100644
--- a/src/validation/index.js
+++ b/src/validation/index.js
@@ -10,6 +10,7 @@
 export { validate } from './validate';
 
 export { ValidationContext } from './ValidationContext';
+export type { ValidationRule } from './ValidationContext';
 
 export { specifiedRules } from './specifiedRules';