diff --git a/React/CSSLayout/CSSLayout.h b/React/CSSLayout/CSSLayout.h
index 3ebce6855e1..f3353fdf05e 100644
--- a/React/CSSLayout/CSSLayout.h
+++ b/React/CSSLayout/CSSLayout.h
@@ -122,16 +122,16 @@ typedef CSSSize (*CSSMeasureFunc)(void *context,
 typedef void (*CSSPrintFunc)(void *context);
 
 // CSSNode
-CSSNodeRef CSSNodeNew();
-void CSSNodeInit(const CSSNodeRef node);
-void CSSNodeFree(const CSSNodeRef node);
+WIN_EXPORT CSSNodeRef CSSNodeNew();
+WIN_EXPORT void CSSNodeInit(const CSSNodeRef node);
+WIN_EXPORT void CSSNodeFree(const CSSNodeRef node);
 
-void CSSNodeInsertChild(const CSSNodeRef node, const CSSNodeRef child, const uint32_t index);
-void CSSNodeRemoveChild(const CSSNodeRef node, const CSSNodeRef child);
-CSSNodeRef CSSNodeGetChild(const CSSNodeRef node, const uint32_t index);
-uint32_t CSSNodeChildCount(const CSSNodeRef node);
+WIN_EXPORT void CSSNodeInsertChild(const CSSNodeRef node, const CSSNodeRef child, const uint32_t index);
+WIN_EXPORT void CSSNodeRemoveChild(const CSSNodeRef node, const CSSNodeRef child);
+WIN_EXPORT CSSNodeRef CSSNodeGetChild(const CSSNodeRef node, const uint32_t index);
+WIN_EXPORT uint32_t CSSNodeChildCount(const CSSNodeRef node);
 
-void CSSNodeCalculateLayout(const CSSNodeRef node,
+WIN_EXPORT void CSSNodeCalculateLayout(const CSSNodeRef node,
                             const float availableWidth,
                             const float availableHeight,
                             const CSSDirection parentDirection);
@@ -142,26 +142,26 @@ void CSSNodeCalculateLayout(const CSSNodeRef node,
 // measure functions
 // depends on information not known to CSSLayout they must perform this dirty
 // marking manually.
-void CSSNodeMarkDirty(const CSSNodeRef node);
-bool CSSNodeIsDirty(const CSSNodeRef node);
+WIN_EXPORT void CSSNodeMarkDirty(const CSSNodeRef node);
+WIN_EXPORT bool CSSNodeIsDirty(const CSSNodeRef node);
 
-void CSSNodePrint(const CSSNodeRef node, const CSSPrintOptions options);
+WIN_EXPORT void CSSNodePrint(const CSSNodeRef node, const CSSPrintOptions options);
 
-bool CSSValueIsUndefined(const float value);
+WIN_EXPORT bool CSSValueIsUndefined(const float value);
 
 #define CSS_NODE_PROPERTY(type, name, paramName)                \
-  void CSSNodeSet##name(const CSSNodeRef node, type paramName); \
-  type CSSNodeGet##name(const CSSNodeRef node);
+  WIN_EXPORT void CSSNodeSet##name(const CSSNodeRef node, type paramName); \
+  WIN_EXPORT type CSSNodeGet##name(const CSSNodeRef node);
 
 #define CSS_NODE_STYLE_PROPERTY(type, name, paramName)                     \
-  void CSSNodeStyleSet##name(const CSSNodeRef node, const type paramName); \
-  type CSSNodeStyleGet##name(const CSSNodeRef node);
+  WIN_EXPORT void CSSNodeStyleSet##name(const CSSNodeRef node, const type paramName); \
+  WIN_EXPORT type CSSNodeStyleGet##name(const CSSNodeRef node);
 
 #define CSS_NODE_STYLE_EDGE_PROPERTY(type, name, paramName)                                    \
-  void CSSNodeStyleSet##name(const CSSNodeRef node, const CSSEdge edge, const type paramName); \
-  type CSSNodeStyleGet##name(const CSSNodeRef node, const CSSEdge edge);
+  WIN_EXPORT void CSSNodeStyleSet##name(const CSSNodeRef node, const CSSEdge edge, const type paramName); \
+  WIN_EXPORT type CSSNodeStyleGet##name(const CSSNodeRef node, const CSSEdge edge);
 
-#define CSS_NODE_LAYOUT_PROPERTY(type, name) type CSSNodeLayoutGet##name(const CSSNodeRef node);
+#define CSS_NODE_LAYOUT_PROPERTY(type, name) WIN_EXPORT type CSSNodeLayoutGet##name(const CSSNodeRef node);
 
 CSS_NODE_PROPERTY(void *, Context, context);
 CSS_NODE_PROPERTY(CSSMeasureFunc, MeasureFunc, measureFunc);
diff --git a/React/CSSLayout/CSSMacros.h b/React/CSSLayout/CSSMacros.h
index eb05985699a..f4e29a1e3ff 100644
--- a/React/CSSLayout/CSSMacros.h
+++ b/React/CSSLayout/CSSMacros.h
@@ -17,6 +17,12 @@
 #define CSS_EXTERN_C_END
 #endif
 
+#ifdef _WINDLL
+#define WIN_EXPORT __declspec(dllexport)
+#else
+#define WIN_EXPORT
+#endif
+
 #ifndef FB_ASSERTIONS_ENABLED
 #define FB_ASSERTIONS_ENABLED 1
 #endif