diff --git a/yoga/Yoga-internal.h b/yoga/Yoga-internal.h
index bc4a4a20..5b4bc5be 100644
--- a/yoga/Yoga-internal.h
+++ b/yoga/Yoga-internal.h
@@ -154,7 +154,6 @@ static const float kDefaultFlexShrink = 0.0f;
 static const float kWebDefaultFlexShrink = 1.0f;
 
 extern bool YGFloatsEqual(const float a, const float b);
-extern bool YGValueEqual(const YGValue a, const YGValue b);
 extern facebook::yoga::detail::CompactValue YGComputedEdgeValue(
     const facebook::yoga::detail::Values<
         facebook::yoga::enums::count<YGEdge>()>& edges,