--- a/layout/generic/nsBlockFrame.cpp
+++ b/layout/generic/nsBlockFrame.cpp
@@ -6400,17 +6400,17 @@ nsBlockFrame::ReflowFloat(BlockReflowInp
   } else if (aReflowStatus.IsIncomplete() &&
              (NS_UNCONSTRAINEDSIZE == aAdjustedAvailableSpace.BSize(wm))) {
     // An incomplete reflow status means we should split the float
     // if the height is constrained (bug 145305).
     aReflowStatus.Reset();
   }
 
   if (aReflowStatus.NextInFlowNeedsReflow()) {
-    aState.mReflowStatus.SetNextInFlowNeedsReflow();
+    aState.mReflowStatus.MergeCompletionStatusFrom(aReflowStatus);
   }
 
   if (aFloat->IsLetterFrame()) {
     // We never split floating first letters; an incomplete state for
     // such frames simply means that there is more content to be
     // reflowed on the line.
     if (aReflowStatus.IsIncomplete())
       aReflowStatus.Reset();