diff --git a/src/type/__tests__/scalars-test.js b/src/type/__tests__/scalars-test.js
index 1d2d5a143f0..d9493a5bed7 100644
--- a/src/type/__tests__/scalars-test.js
+++ b/src/type/__tests__/scalars-test.js
@@ -322,7 +322,7 @@ describe('Type System: Specified scalar types', () => {
       expect(parseLiteral('0')).to.equal('0');
       expect(parseLiteral('-1')).to.equal('-1');
 
-      // Support arbituary long numbers even if they can't be represented in JS
+      // Support arbitrary long numbers even if they can't be represented in JS
       expect(parseLiteral('90071992547409910')).to.equal('90071992547409910');
       expect(parseLiteral('-90071992547409910')).to.equal('-90071992547409910');
 
diff --git a/src/validation/__tests__/KnownTypeNames-test.js b/src/validation/__tests__/KnownTypeNames-test.js
index 7d38236a18b..1c309846ece 100644
--- a/src/validation/__tests__/KnownTypeNames-test.js
+++ b/src/validation/__tests__/KnownTypeNames-test.js
@@ -175,7 +175,7 @@ describe('Validate: Known type names', () => {
       ]);
     });
 
-    it('doesnot consider non-type definitions', () => {
+    it('does not consider non-type definitions', () => {
       expectSDLErrors(`
         query Foo { __typename }
         fragment Foo on Query { __typename }