diff --git a/mozilla/content/base/src/nsStyleContext.cpp b/mozilla/content/base/src/nsStyleContext.cpp
index 97e15d70c4e..04d1faeddb6 100644
--- a/mozilla/content/base/src/nsStyleContext.cpp
+++ b/mozilla/content/base/src/nsStyleContext.cpp
@@ -2983,7 +2983,7 @@ static void  ReleaseMutableStyleStruct(nsStyleStructID aSID, nsStyleStruct* aSty
   short structType = aSID - 1;
   for (short structIndex = 0; structIndex < kStructIndexMax; structIndex++) {
     if (gStructPointer[structType][structIndex] == aStyleStruct) {
-      gStructBusy[structType][structIndex] = false;
+      gStructBusy[structType][structIndex] = PR_FALSE;
       return;
     }
   }
diff --git a/mozilla/layout/style/nsStyleContext.cpp b/mozilla/layout/style/nsStyleContext.cpp
index 97e15d70c4e..04d1faeddb6 100644
--- a/mozilla/layout/style/nsStyleContext.cpp
+++ b/mozilla/layout/style/nsStyleContext.cpp
@@ -2983,7 +2983,7 @@ static void  ReleaseMutableStyleStruct(nsStyleStructID aSID, nsStyleStruct* aSty
   short structType = aSID - 1;
   for (short structIndex = 0; structIndex < kStructIndexMax; structIndex++) {
     if (gStructPointer[structType][structIndex] == aStyleStruct) {
-      gStructBusy[structType][structIndex] = false;
+      gStructBusy[structType][structIndex] = PR_FALSE;
       return;
     }
   }