diff --git a/Libraries/Lists/SectionList.js b/Libraries/Lists/SectionList.js
index 35a5e3506..cf5cbbb41 100644
--- a/Libraries/Lists/SectionList.js
+++ b/Libraries/Lists/SectionList.js
@@ -252,7 +252,10 @@ type DefaultProps = typeof defaultProps;
  *   Alternatively, you can provide a custom `keyExtractor` prop.
  *
  */
-class SectionList<SectionT: SectionBase<any>> extends React.PureComponent<Props<SectionT>, void> {
+class SectionList<SectionT: SectionBase<any>> extends React.PureComponent<
+  Props<SectionT>,
+  void,
+> {
   props: Props<SectionT>;
   static defaultProps: DefaultProps = defaultProps;
 
diff --git a/Libraries/Lists/VirtualizedList.js b/Libraries/Lists/VirtualizedList.js
index 569520736..3d1d8cea2 100644
--- a/Libraries/Lists/VirtualizedList.js
+++ b/Libraries/Lists/VirtualizedList.js
@@ -1221,23 +1221,26 @@ class VirtualizedList extends React.PureComponent<Props, State> {
   }
 }
 
-class CellRenderer extends React.Component<{
-  CellRendererComponent?: ?React.ComponentType<any>,
-  ItemSeparatorComponent: ?React.ComponentType<*>,
-  cellKey: string,
-  fillRateHelper: FillRateHelper,
-  index: number,
-  inversionStyle: ?StyleObj,
-  item: Item,
-  onLayout: (event: Object) => void, // This is extracted by ScrollViewStickyHeader
-  onUnmount: (cellKey: string) => void,
-  onUpdateSeparators: (cellKeys: Array<?string>, props: Object) => void,
-  parentProps: {
-    getItemLayout?: ?Function,
-    renderItem: renderItemType,
+class CellRenderer extends React.Component<
+  {
+    CellRendererComponent?: ?React.ComponentType<any>,
+    ItemSeparatorComponent: ?React.ComponentType<*>,
+    cellKey: string,
+    fillRateHelper: FillRateHelper,
+    index: number,
+    inversionStyle: ?StyleObj,
+    item: Item,
+    onLayout: (event: Object) => void, // This is extracted by ScrollViewStickyHeader
+    onUnmount: (cellKey: string) => void,
+    onUpdateSeparators: (cellKeys: Array<?string>, props: Object) => void,
+    parentProps: {
+      getItemLayout?: ?Function,
+      renderItem: renderItemType,
+    },
+    prevCellKey: ?string,
   },
-  prevCellKey: ?string,
-}, $FlowFixMeState> {
+  $FlowFixMeState,
+> {
   state = {
     separatorProps: {
       highlighted: false,
diff --git a/Libraries/Lists/VirtualizedSectionList.js b/Libraries/Lists/VirtualizedSectionList.js
index fbb231f07..e4ab9883b 100644
--- a/Libraries/Lists/VirtualizedSectionList.js
+++ b/Libraries/Lists/VirtualizedSectionList.js
@@ -133,7 +133,10 @@ type State = {childProps: VirtualizedListProps};
  * hood. The only operation that might not scale well is concatting the data arrays of all the
  * sections when new props are received, which should be plenty fast for up to ~10,000 items.
  */
-class VirtualizedSectionList<SectionT: SectionBase> extends React.PureComponent<Props<SectionT>, State> {
+class VirtualizedSectionList<SectionT: SectionBase> extends React.PureComponent<
+  Props<SectionT>,
+  State,
+> {
   props: Props<SectionT>;
 
   state: State;
@@ -301,7 +304,10 @@ class VirtualizedSectionList<SectionT: SectionBase> extends React.PureComponent<
     ref && ref.updateSeparatorProps(newProps);
   };
 
-  _getSeparatorComponent(index: number, info?: ?Object): ?React.ComponentType<*> {
+  _getSeparatorComponent(
+    index: number,
+    info?: ?Object,
+  ): ?React.ComponentType<*> {
     info = info || this._subExtractor(index);
     if (!info) {
       return null;
@@ -389,7 +395,10 @@ type ItemWithSeparatorProps = {
   trailingSection: ?Object,
 };
 
-class ItemWithSeparator extends React.Component<ItemWithSeparatorProps, $FlowFixMeState> {
+class ItemWithSeparator extends React.Component<
+  ItemWithSeparatorProps,
+  $FlowFixMeState,
+> {
   state = {
     separatorProps: {
       highlighted: false,
diff --git a/RNTester/js/CameraRollExample.js b/RNTester/js/CameraRollExample.js
index 2cec3f3bd..00f053698 100644
--- a/RNTester/js/CameraRollExample.js
+++ b/RNTester/js/CameraRollExample.js
@@ -31,7 +31,10 @@ const CameraRollView = require('./CameraRollView');
 
 const AssetScaledImageExampleView = require('./AssetScaledImageExample');
 
-class CameraRollExample extends React.Component<$FlowFixMeProps, $FlowFixMeState> {
+class CameraRollExample extends React.Component<
+  $FlowFixMeProps,
+  $FlowFixMeState,
+> {
   state = {
     groupTypes: 'SavedPhotos',
     sliderValue: 1,