diff --git a/mozilla/content/html/style/src/nsCSSDeclaration.cpp b/mozilla/content/html/style/src/nsCSSDeclaration.cpp
index 0a8079fbc0a..166c81c5552 100644
--- a/mozilla/content/html/style/src/nsCSSDeclaration.cpp
+++ b/mozilla/content/html/style/src/nsCSSDeclaration.cpp
@@ -861,7 +861,8 @@ nsCSSUserInterface::nsCSSUserInterface(const nsCSSUserInterface& aCopy)
     mUserSelect(aCopy.mUserSelect),
     mKeyEquivalent(nsnull),
     mUserFocus(aCopy.mUserFocus),
-    mResizer(aCopy.mResizer)
+    mResizer(aCopy.mResizer),
+    mCursor(nsnull)
 {
   MOZ_COUNT_CTOR(nsCSSUserInterface);
   CSS_IF_COPY(mCursor, nsCSSValueList);
diff --git a/mozilla/content/html/style/src/nsCSSStruct.cpp b/mozilla/content/html/style/src/nsCSSStruct.cpp
index 0a8079fbc0a..166c81c5552 100644
--- a/mozilla/content/html/style/src/nsCSSStruct.cpp
+++ b/mozilla/content/html/style/src/nsCSSStruct.cpp
@@ -861,7 +861,8 @@ nsCSSUserInterface::nsCSSUserInterface(const nsCSSUserInterface& aCopy)
     mUserSelect(aCopy.mUserSelect),
     mKeyEquivalent(nsnull),
     mUserFocus(aCopy.mUserFocus),
-    mResizer(aCopy.mResizer)
+    mResizer(aCopy.mResizer),
+    mCursor(nsnull)
 {
   MOZ_COUNT_CTOR(nsCSSUserInterface);
   CSS_IF_COPY(mCursor, nsCSSValueList);
diff --git a/mozilla/layout/style/nsCSSDeclaration.cpp b/mozilla/layout/style/nsCSSDeclaration.cpp
index 0a8079fbc0a..166c81c5552 100644
--- a/mozilla/layout/style/nsCSSDeclaration.cpp
+++ b/mozilla/layout/style/nsCSSDeclaration.cpp
@@ -861,7 +861,8 @@ nsCSSUserInterface::nsCSSUserInterface(const nsCSSUserInterface& aCopy)
     mUserSelect(aCopy.mUserSelect),
     mKeyEquivalent(nsnull),
     mUserFocus(aCopy.mUserFocus),
-    mResizer(aCopy.mResizer)
+    mResizer(aCopy.mResizer),
+    mCursor(nsnull)
 {
   MOZ_COUNT_CTOR(nsCSSUserInterface);
   CSS_IF_COPY(mCursor, nsCSSValueList);
diff --git a/mozilla/layout/style/nsCSSStruct.cpp b/mozilla/layout/style/nsCSSStruct.cpp
index 0a8079fbc0a..166c81c5552 100644
--- a/mozilla/layout/style/nsCSSStruct.cpp
+++ b/mozilla/layout/style/nsCSSStruct.cpp
@@ -861,7 +861,8 @@ nsCSSUserInterface::nsCSSUserInterface(const nsCSSUserInterface& aCopy)
     mUserSelect(aCopy.mUserSelect),
     mKeyEquivalent(nsnull),
     mUserFocus(aCopy.mUserFocus),
-    mResizer(aCopy.mResizer)
+    mResizer(aCopy.mResizer),
+    mCursor(nsnull)
 {
   MOZ_COUNT_CTOR(nsCSSUserInterface);
   CSS_IF_COPY(mCursor, nsCSSValueList);