diff --git a/layout/style/ServoBindingList.h b/layout/style/ServoBindingList.h
index 4962a71bc6fa..c9061c90be80 100644
--- a/layout/style/ServoBindingList.h
+++ b/layout/style/ServoBindingList.h
@@ -470,6 +470,8 @@ SERVO_BINDING_FUNC(Servo_ComputedValues_Inherit, ServoComputedValuesStrong,
 SERVO_BINDING_FUNC(Servo_ComputedValues_GetVisitedStyle,
                    ServoComputedValuesStrong,
                    ServoComputedValuesBorrowed values)
+SERVO_BINDING_FUNC(Servo_ComputedValues_GetStyleBits, uint64_t,
+                   ServoComputedValuesBorrowed values)
 // Gets the source style rules for the computed values. This returns
 // the result via rules, which would include a list of unowned pointers
 // to RawServoStyleRule.
diff --git a/layout/style/ServoStyleContext.cpp b/layout/style/ServoStyleContext.cpp
index d45739b3c599..2321791d6763 100644
--- a/layout/style/ServoStyleContext.cpp
+++ b/layout/style/ServoStyleContext.cpp
@@ -22,6 +22,7 @@ ServoStyleContext::ServoStyleContext(nsStyleContext* aParent,
   mSource(Move(aComputedValues))
 {
   mPresContext = aPresContext;
+  AddStyleBit(Servo_ComputedValues_GetStyleBits(mSource));
 
   FinishConstruction();