diff --git a/mozilla/layout/generic/nsFrameSetFrame.cpp b/mozilla/layout/generic/nsFrameSetFrame.cpp
index c29c3752eed..761c08052a5 100644
--- a/mozilla/layout/generic/nsFrameSetFrame.cpp
+++ b/mozilla/layout/generic/nsFrameSetFrame.cpp
@@ -687,6 +687,7 @@ nsHTMLFramesetFrame::ReflowPlaceChild(nsIFrame*                aChild,
 
 }
 
+static
 nsFrameborder GetFrameBorderHelper(nsIHTMLContent* aContent, PRBool aStandardMode)
 {
   if (nsnull != aContent) {
diff --git a/mozilla/layout/html/document/src/nsFrameSetFrame.cpp b/mozilla/layout/html/document/src/nsFrameSetFrame.cpp
index c29c3752eed..761c08052a5 100644
--- a/mozilla/layout/html/document/src/nsFrameSetFrame.cpp
+++ b/mozilla/layout/html/document/src/nsFrameSetFrame.cpp
@@ -687,6 +687,7 @@ nsHTMLFramesetFrame::ReflowPlaceChild(nsIFrame*                aChild,
 
 }
 
+static
 nsFrameborder GetFrameBorderHelper(nsIHTMLContent* aContent, PRBool aStandardMode)
 {
   if (nsnull != aContent) {