diff --git a/Libraries/Components/TabBarIOS/TabBarIOS.ios.js b/Libraries/Components/TabBarIOS/TabBarIOS.ios.js
index bfd180823..9d1b63567 100644
--- a/Libraries/Components/TabBarIOS/TabBarIOS.ios.js
+++ b/Libraries/Components/TabBarIOS/TabBarIOS.ios.js
@@ -18,11 +18,11 @@ const ViewPropTypes = require('ViewPropTypes');
 
 const requireNativeComponent = require('requireNativeComponent');
 
-import type {StyleObj} from 'StyleSheetTypes';
+import type {DangerouslyImpreciseStyleProp} from 'StyleSheet';
 import type {ViewProps} from 'ViewPropTypes';
 
 class TabBarIOS extends React.Component<ViewProps & {
-  style?: StyleObj,
+  style?: DangerouslyImpreciseStyleProp,
   unselectedTintColor?: string,
   tintColor?: string,
   unselectedItemTintColor?: string,
diff --git a/Libraries/Inspector/ElementProperties.js b/Libraries/Inspector/ElementProperties.js
index f7937c5f7..460e1c2df 100644
--- a/Libraries/Inspector/ElementProperties.js
+++ b/Libraries/Inspector/ElementProperties.js
@@ -23,11 +23,11 @@ const flattenStyle = require('flattenStyle');
 const mapWithSeparator = require('mapWithSeparator');
 const openFileInEditor = require('openFileInEditor');
 
-import type {StyleObj} from 'StyleSheetTypes';
+import type {DangerouslyImpreciseStyleProp} from 'StyleSheet';
 
 class ElementProperties extends React.Component<{
   hierarchy: Array<$FlowFixMe>,
-  style?: StyleObj,
+  style?: DangerouslyImpreciseStyleProp,
   source?: {
     fileName?: string,
     lineNumber?: number,
diff --git a/Libraries/Lists/FlatList.js b/Libraries/Lists/FlatList.js
index e5b4a8310..13b87ed99 100644
--- a/Libraries/Lists/FlatList.js
+++ b/Libraries/Lists/FlatList.js
@@ -18,7 +18,7 @@ const ListView = require('ListView');
 
 const invariant = require('fbjs/lib/invariant');
 
-import type {StyleObj} from 'StyleSheetTypes';
+import type {DangerouslyImpreciseStyleProp} from 'StyleSheet';
 import type {
   ViewabilityConfig,
   ViewToken,
@@ -96,7 +96,7 @@ type OptionalProps<ItemT> = {
   /**
    * Optional custom style for multi-item rows generated when numColumns > 1.
    */
-  columnWrapperStyle?: StyleObj,
+  columnWrapperStyle?: DangerouslyImpreciseStyleProp,
   /**
    * A marker property for telling the list to re-render (since it implements `PureComponent`). If
    * any of your `renderItem`, Header, Footer, etc. functions depend on anything outside of the
diff --git a/Libraries/Lists/VirtualizedList.js b/Libraries/Lists/VirtualizedList.js
index e6acee9e7..90e978cf8 100644
--- a/Libraries/Lists/VirtualizedList.js
+++ b/Libraries/Lists/VirtualizedList.js
@@ -32,7 +32,7 @@ const warning = require('fbjs/lib/warning');
 
 const {computeWindowedRenderLimits} = require('VirtualizeUtils');
 
-import type {StyleObj} from 'StyleSheetTypes';
+import type {DangerouslyImpreciseStyleProp} from 'StyleSheet';
 import type {
   ViewabilityConfig,
   ViewToken,
@@ -644,7 +644,7 @@ class VirtualizedList extends React.PureComponent<Props, State> {
     stickyIndicesFromProps: Set<number>,
     first: number,
     last: number,
-    inversionStyle: ?StyleObj,
+    inversionStyle: ?DangerouslyImpreciseStyleProp,
   ) {
     const {
       CellRendererComponent,
@@ -1545,7 +1545,7 @@ class CellRenderer extends React.Component<
     fillRateHelper: FillRateHelper,
     horizontal: ?boolean,
     index: number,
-    inversionStyle: ?StyleObj,
+    inversionStyle: ?DangerouslyImpreciseStyleProp,
     item: Item,
     onLayout: (event: Object) => void, // This is extracted by ScrollViewStickyHeader
     onUnmount: (cellKey: string) => void,
diff --git a/Libraries/StyleSheet/StyleSheet.js b/Libraries/StyleSheet/StyleSheet.js
index 00a69d202..7f5888d8f 100644
--- a/Libraries/StyleSheet/StyleSheet.js
+++ b/Libraries/StyleSheet/StyleSheet.js
@@ -19,11 +19,11 @@ const flatten = require('flattenStyle');
 import type {
   StyleSheetStyle as _StyleSheetStyle,
   Styles as _Styles,
-  StyleObj,
+  ____StyleObj_Internal,
   LayoutStyle
 } from 'StyleSheetTypes';
 
-export type DangerouslyImpreciseStyleProp = StyleObj;
+export type DangerouslyImpreciseStyleProp = ____StyleObj_Internal;
 export type Styles = _Styles;
 export type StyleSheetStyle = _StyleSheetStyle;
 type StyleSheet<+S: Styles> = $ObjMap<S, (Object) => StyleSheetStyle>;
diff --git a/Libraries/StyleSheet/StyleSheetTypes.js b/Libraries/StyleSheet/StyleSheetTypes.js
index c51787c61..c8df91073 100644
--- a/Libraries/StyleSheet/StyleSheetTypes.js
+++ b/Libraries/StyleSheet/StyleSheetTypes.js
@@ -230,7 +230,7 @@ type GenericStyleProp<+T> =
   | ''
   | $ReadOnlyArray<GenericStyleProp<T>>;
 
-export type StyleObj = GenericStyleProp<$Shape<Style>>;
+export type ____StyleObj_Internal = GenericStyleProp<$Shape<Style>>;
 
 export type ViewStyleProp = GenericStyleProp<$ReadOnly<$Shape<ViewStyle>>>;
 export type TextStyleProp = GenericStyleProp<$ReadOnly<$Shape<TextStyle>>>;
diff --git a/Libraries/StyleSheet/flattenStyle.js b/Libraries/StyleSheet/flattenStyle.js
index 204d03c1d..43122e074 100644
--- a/Libraries/StyleSheet/flattenStyle.js
+++ b/Libraries/StyleSheet/flattenStyle.js
@@ -11,7 +11,8 @@
 
 var ReactNativePropRegistry;
 
-import type { StyleObj, Style } from 'StyleSheetTypes';
+import type {DangerouslyImpreciseStyleProp} from 'StyleSheet';
+import type { Style } from 'StyleSheetTypes';
 
 function getStyle(style) {
   if (ReactNativePropRegistry === undefined) {
@@ -23,7 +24,7 @@ function getStyle(style) {
   return style;
 }
 
-function flattenStyle(style: ?StyleObj): ?Style {
+function flattenStyle(style: ?DangerouslyImpreciseStyleProp): ?Style {
   if (style == null) {
     return undefined;
   }
diff --git a/RNTester/js/RNTesterExampleList.js b/RNTester/js/RNTesterExampleList.js
index 1217fd064..96e1ed9b4 100644
--- a/RNTester/js/RNTesterExampleList.js
+++ b/RNTester/js/RNTesterExampleList.js
@@ -22,7 +22,7 @@ const View = require('View');
 
 import type {RNTesterExample} from './RNTesterList.ios';
 import type {PassProps} from './RNTesterStatePersister';
-import type {StyleObj} from 'StyleSheetTypes';
+import type {DangerouslyImpreciseStyleProp} from 'StyleSheet';
 
 type Props = {
   onNavigate: Function,
@@ -31,8 +31,8 @@ type Props = {
     APIExamples: Array<RNTesterExample>,
   },
   persister: PassProps<*>,
-  searchTextInputStyle: StyleObj,
-  style?: ?StyleObj,
+  searchTextInputStyle: DangerouslyImpreciseStyleProp,
+  style?: ?DangerouslyImpreciseStyleProp,
 };
 
 class RowComponent extends React.PureComponent<{
diff --git a/RNTester/js/ScrollViewExample.js b/RNTester/js/ScrollViewExample.js
index f0d1e9bb1..f5b5c8aab 100644
--- a/RNTester/js/ScrollViewExample.js
+++ b/RNTester/js/ScrollViewExample.js
@@ -10,7 +10,7 @@
  */
 'use strict';
 
-import type {StyleObj} from 'StyleSheetTypes';
+import type {DangerouslyImpreciseStyleProp} from 'StyleSheet';
 
 const ActivityIndicator = require('ActivityIndicator');
 const Platform = require('Platform');
@@ -252,7 +252,7 @@ if (Platform.OS === 'ios') {
 class Thumb extends React.PureComponent<{|
   source?: string | number,
   msg?: string,
-  style?: StyleObj,
+  style?: DangerouslyImpreciseStyleProp,
 |}> {
   render() {
     const {source} = this.props;