diff --git a/mozilla/js/js2/icodegenerator.cpp b/mozilla/js/js2/icodegenerator.cpp
index a9cdcba4efe..457e8edb4f4 100644
--- a/mozilla/js/js2/icodegenerator.cpp
+++ b/mozilla/js/js2/icodegenerator.cpp
@@ -279,13 +279,13 @@ namespace ICG {
     void ICodeGenerator::setLabel(Label *l)
     {
         l->mBase = iCode;
-        l->mOffset = static_cast<int32>(iCode->size());
+        l->mOffset = iCode->size();
     }
 
     void ICodeGenerator::setLabel(InstructionStream *stream, Label *l)
     {
         l->mBase = stream;
-        l->mOffset = static_cast<int32>(stream->size());
+        l->mOffset = stream->size();
     }
 
     /********************************************************************/
diff --git a/mozilla/js2/src/icodegenerator.cpp b/mozilla/js2/src/icodegenerator.cpp
index a9cdcba4efe..457e8edb4f4 100644
--- a/mozilla/js2/src/icodegenerator.cpp
+++ b/mozilla/js2/src/icodegenerator.cpp
@@ -279,13 +279,13 @@ namespace ICG {
     void ICodeGenerator::setLabel(Label *l)
     {
         l->mBase = iCode;
-        l->mOffset = static_cast<int32>(iCode->size());
+        l->mOffset = iCode->size();
     }
 
     void ICodeGenerator::setLabel(InstructionStream *stream, Label *l)
     {
         l->mBase = stream;
-        l->mOffset = static_cast<int32>(stream->size());
+        l->mOffset = stream->size();
     }
 
     /********************************************************************/