diff --git a/packages/babel-generator/src/generators/classes.js b/packages/babel-generator/src/generators/classes.js
index db3151f51693..67c3aed42b10 100644
--- a/packages/babel-generator/src/generators/classes.js
+++ b/packages/babel-generator/src/generators/classes.js
@@ -60,6 +60,7 @@ export function ClassProperty(node: Object) {
     this.print(node.key, node);
     this.token("]");
   } else {
+    this._variance(node);
     this.print(node.key, node);
   }
   this.print(node.typeAnnotation, node);
diff --git a/packages/babel-generator/src/generators/flow.js b/packages/babel-generator/src/generators/flow.js
index 5f36f55547fc..b6c5a8b20d69 100644
--- a/packages/babel-generator/src/generators/flow.js
+++ b/packages/babel-generator/src/generators/flow.js
@@ -147,6 +147,14 @@ export function _interfaceish(node: Object) {
   this.print(node.body, node);
 }
 
+export function _variance(node) {
+  if (node.variance === "plus") {
+    this.token("+");
+  } else if (node.variance === "minus") {
+    this.token("-");
+  }
+}
+
 export function InterfaceDeclaration(node: Object) {
   this.word("interface");
   this.space();
@@ -225,11 +233,7 @@ export function TypeAnnotation(node: Object) {
 }
 
 export function TypeParameter(node: Object) {
-  if (node.variance === "plus") {
-    this.token("+");
-  } else if (node.variance === "minus") {
-    this.token("-");
-  }
+  this._variance(node);
 
   this.word(node.name);
 
@@ -299,6 +303,7 @@ export function ObjectTypeIndexer(node: Object) {
     this.word("static");
     this.space();
   }
+  this._variance(node);
   this.token("[");
   this.print(node.id, node);
   this.token(":");
@@ -315,6 +320,7 @@ export function ObjectTypeProperty(node: Object) {
     this.word("static");
     this.space();
   }
+  this._variance(node);
   this.print(node.key, node);
   if (node.optional) this.token("?");
   this.token(":");
diff --git a/packages/babel-generator/test/fixtures/flow/def-site-variance/actual.js b/packages/babel-generator/test/fixtures/flow/def-site-variance/actual.js
index f046505722fe..a9cf25b9c27a 100644
--- a/packages/babel-generator/test/fixtures/flow/def-site-variance/actual.js
+++ b/packages/babel-generator/test/fixtures/flow/def-site-variance/actual.js
@@ -1,3 +1,17 @@
-class C<+T, -U> {}
+class C1<+T, -U> {}
 function f<+T, -U>() {}
 type T<+T, -U> = {};
+type T = { +p: T };
+type T = { -p: T };
+type T = { +[k:K]: V };
+type T = { -[k:K]: V };
+interface I { +p: T };
+interface I { -p: T };
+interface I { +[k:K]: V };
+interface I { -[k:K]: V };
+declare class I { +p: T };
+declare class I { -p: T };
+declare class I { +[k:K]: V };
+declare class I { -[k:K]: V };
+class C2 { +p: T = e };
+class C3 { -p: T = e };
diff --git a/packages/babel-generator/test/fixtures/flow/def-site-variance/expected.js b/packages/babel-generator/test/fixtures/flow/def-site-variance/expected.js
index f046505722fe..1538e1ec99c6 100644
--- a/packages/babel-generator/test/fixtures/flow/def-site-variance/expected.js
+++ b/packages/babel-generator/test/fixtures/flow/def-site-variance/expected.js
@@ -1,3 +1,21 @@
-class C<+T, -U> {}
+class C1<+T, -U> {}
 function f<+T, -U>() {}
 type T<+T, -U> = {};
+type T = { +p: T };
+type T = { -p: T };
+type T = { +[k: K]: V };
+type T = { -[k: K]: V };
+interface I { +p: T };
+interface I { -p: T };
+interface I { +[k: K]: V };
+interface I { -[k: K]: V };
+declare class I { +p: T };
+declare class I { -p: T };
+declare class I { +[k: K]: V };
+declare class I { -[k: K]: V };
+class C2 {
+  +p: T = e;
+};
+class C3 {
+  -p: T = e;
+};
diff --git a/packages/babel-plugin-transform-flow-strip-types/src/index.js b/packages/babel-plugin-transform-flow-strip-types/src/index.js
index 80b52476d750..24e9bf8d10c0 100644
--- a/packages/babel-plugin-transform-flow-strip-types/src/index.js
+++ b/packages/babel-plugin-transform-flow-strip-types/src/index.js
@@ -22,6 +22,7 @@ export default function ({ types: t }) {
       },
 
       ClassProperty(path) {
+        path.node.variance = null;
         path.node.typeAnnotation = null;
         if (!path.node.value) path.remove();
       },
diff --git a/packages/babel-plugin-transform-flow-strip-types/test/fixtures/regression/property-variance-with-class-properties/actual.js b/packages/babel-plugin-transform-flow-strip-types/test/fixtures/regression/property-variance-with-class-properties/actual.js
new file mode 100644
index 000000000000..8b4161346375
--- /dev/null
+++ b/packages/babel-plugin-transform-flow-strip-types/test/fixtures/regression/property-variance-with-class-properties/actual.js
@@ -0,0 +1,3 @@
+class C {
+  +p: T = e;
+}
diff --git a/packages/babel-plugin-transform-flow-strip-types/test/fixtures/regression/property-variance-with-class-properties/expected.js b/packages/babel-plugin-transform-flow-strip-types/test/fixtures/regression/property-variance-with-class-properties/expected.js
new file mode 100644
index 000000000000..da28fb47901f
--- /dev/null
+++ b/packages/babel-plugin-transform-flow-strip-types/test/fixtures/regression/property-variance-with-class-properties/expected.js
@@ -0,0 +1,3 @@
+class C {
+  p = e;
+}
diff --git a/packages/babel-plugin-transform-flow-strip-types/test/fixtures/regression/property-variance-with-class-properties/options.json b/packages/babel-plugin-transform-flow-strip-types/test/fixtures/regression/property-variance-with-class-properties/options.json
new file mode 100644
index 000000000000..56245d91c6c1
--- /dev/null
+++ b/packages/babel-plugin-transform-flow-strip-types/test/fixtures/regression/property-variance-with-class-properties/options.json
@@ -0,0 +1,3 @@
+{
+  "plugins": ["transform-flow-strip-types", "syntax-class-properties"]
+}
diff --git a/packages/babel-plugin-transform-flow-strip-types/test/fixtures/strip-types/def-site-variance/actual.js b/packages/babel-plugin-transform-flow-strip-types/test/fixtures/strip-types/def-site-variance/actual.js
index f046505722fe..a97695f41813 100644
--- a/packages/babel-plugin-transform-flow-strip-types/test/fixtures/strip-types/def-site-variance/actual.js
+++ b/packages/babel-plugin-transform-flow-strip-types/test/fixtures/strip-types/def-site-variance/actual.js
@@ -1,3 +1,17 @@
-class C<+T, -U> {}
+class C1<+T, -U> {}
 function f<+T, -U>() {}
-type T<+T, -U> = {};
+type T<+T, -U> = {}
+type T = { +p: T }
+type T = { -p: T }
+type T = { +[k:K]: V }
+type T = { -[k:K]: V }
+interface I { +p: T }
+interface I { -p: T }
+interface I { +[k:K]: V }
+interface I { -[k:K]: V }
+declare class I { +p: T }
+declare class I { -p: T }
+declare class I { +[k:K]: V }
+declare class I { -[k:K]: V }
+class C2 { +p: T }
+class C3 { -p: T }
diff --git a/packages/babel-plugin-transform-flow-strip-types/test/fixtures/strip-types/def-site-variance/expected.js b/packages/babel-plugin-transform-flow-strip-types/test/fixtures/strip-types/def-site-variance/expected.js
index 9eb99a782f8a..dce129ae1ec1 100644
--- a/packages/babel-plugin-transform-flow-strip-types/test/fixtures/strip-types/def-site-variance/expected.js
+++ b/packages/babel-plugin-transform-flow-strip-types/test/fixtures/strip-types/def-site-variance/expected.js
@@ -1,2 +1,5 @@
-class C {}
+class C1 {}
 function f() {}
+
+class C2 {}
+class C3 {}