diff --git a/layout/generic/nsTextFrame.cpp b/layout/generic/nsTextFrame.cpp
index 0edca2aa8e2c..7f3996ed5ea7 100644
--- a/layout/generic/nsTextFrame.cpp
+++ b/layout/generic/nsTextFrame.cpp
@@ -2215,7 +2215,7 @@ TextFrame::Reflow(nsIPresContext& aPresContext,
   PRInt32 prevColumn = column;
   mColumn = column;
 
-  PRBool breakable = !lineLayout.LineIsEmpty();
+  PRBool breakable = lineLayout.LineIsBreakable();
   for (;;) {
     // Get next word/whitespace from the text
     PRBool isWhitespace;
diff --git a/layout/html/base/src/nsTextFrame.cpp b/layout/html/base/src/nsTextFrame.cpp
index 0edca2aa8e2c..7f3996ed5ea7 100644
--- a/layout/html/base/src/nsTextFrame.cpp
+++ b/layout/html/base/src/nsTextFrame.cpp
@@ -2215,7 +2215,7 @@ TextFrame::Reflow(nsIPresContext& aPresContext,
   PRInt32 prevColumn = column;
   mColumn = column;
 
-  PRBool breakable = !lineLayout.LineIsEmpty();
+  PRBool breakable = lineLayout.LineIsBreakable();
   for (;;) {
     // Get next word/whitespace from the text
     PRBool isWhitespace;