diff --git a/src/plugins/flow.js b/src/plugins/flow.js
index 0ae0587eef..7195534039 100644
--- a/src/plugins/flow.js
+++ b/src/plugins/flow.js
@@ -1043,12 +1043,10 @@ export default (superClass: Class<Parser>): Class<Parser> =>
           );
 
         case tt._null:
-          node.value = this.match(tt._null);
           this.next();
           return this.finishNode(node, "NullLiteralTypeAnnotation");
 
         case tt._this:
-          node.value = this.match(tt._this);
           this.next();
           return this.finishNode(node, "ThisTypeAnnotation");
 
diff --git a/test/fixtures/flow/classes/constructor-override-with-class-prop-plugin/expected.json b/test/fixtures/flow/classes/constructor-override-with-class-prop-plugin/expected.json
index 721399cff9..2d268761f8 100644
--- a/test/fixtures/flow/classes/constructor-override-with-class-prop-plugin/expected.json
+++ b/test/fixtures/flow/classes/constructor-override-with-class-prop-plugin/expected.json
@@ -152,8 +152,7 @@
                         "line": 2,
                         "column": 25
                       }
-                    },
-                    "value": true
+                    }
                   },
                   "typeParameters": null
                 }
diff --git a/test/fixtures/flow/literal-types/null/expected.json b/test/fixtures/flow/literal-types/null/expected.json
index 9eefed3e90..954921be67 100644
--- a/test/fixtures/flow/literal-types/null/expected.json
+++ b/test/fixtures/flow/literal-types/null/expected.json
@@ -100,8 +100,7 @@
                       "line": 1,
                       "column": 13
                     }
-                  },
-                  "value": true
+                  }
                 }
               }
             },
diff --git a/test/fixtures/flow/type-annotations/100/expected.json b/test/fixtures/flow/type-annotations/100/expected.json
index a0e6a89d2c..3a0d91cfaa 100644
--- a/test/fixtures/flow/type-annotations/100/expected.json
+++ b/test/fixtures/flow/type-annotations/100/expected.json
@@ -142,8 +142,7 @@
                       "line": 1,
                       "column": 22
                     }
-                  },
-                  "value": true
+                  }
                 }
               },
               "body": {
diff --git a/test/fixtures/flow/type-annotations/builtin/expected.json b/test/fixtures/flow/type-annotations/builtin/expected.json
index c60b595377..77be18db9e 100644
--- a/test/fixtures/flow/type-annotations/builtin/expected.json
+++ b/test/fixtures/flow/type-annotations/builtin/expected.json
@@ -529,8 +529,7 @@
               "line": 12,
               "column": 13
             }
-          },
-          "value": true
+          }
         },
         "leadingComments": [
           {
diff --git a/test/fixtures/flow/type-annotations/existential-type-param-2/expected.json b/test/fixtures/flow/type-annotations/existential-type-param-2/expected.json
index 35d26afbfb..a5657a79d5 100644
--- a/test/fixtures/flow/type-annotations/existential-type-param-2/expected.json
+++ b/test/fixtures/flow/type-annotations/existential-type-param-2/expected.json
@@ -212,8 +212,7 @@
                               "line": 1,
                               "column": 21
                             }
-                          },
-                          "value": true
+                          }
                         },
                         {
                           "type": "ExistsTypeAnnotation",