diff --git a/mozilla/modules/libjar/nsJAR.cpp b/mozilla/modules/libjar/nsJAR.cpp
index 6c72767314e..75126746ea7 100644
--- a/mozilla/modules/libjar/nsJAR.cpp
+++ b/mozilla/modules/libjar/nsJAR.cpp
@@ -430,7 +430,7 @@ nsJAR::CreateInputStream(const char* aFilename, nsIInputStream **is)
 }
 
 nsresult 
-nsJAR::LoadEntry(const char* aFilename, const char** aBuf, PRUint32* aBufLen)
+nsJAR::LoadEntry(const char* aFilename, char** aBuf, PRUint32* aBufLen)
 {
   //-- Get a stream for reading the manifest file
   nsresult rv;
diff --git a/mozilla/modules/libjar/nsJAR.h b/mozilla/modules/libjar/nsJAR.h
index c5ba095688a..f831a8148ca 100644
--- a/mozilla/modules/libjar/nsJAR.h
+++ b/mozilla/modules/libjar/nsJAR.h
@@ -85,7 +85,7 @@ class nsJAR : public nsIZipReader
 
     //-- Private functions
     nsresult CreateInputStream(const char* aFilename, nsIInputStream** is);
-    nsresult LoadEntry(const char* aFilename, const char** aBuf, 
+    nsresult LoadEntry(const char* aFilename, char** aBuf, 
                        PRUint32* aBufLen = nsnull);
     PRInt32  ReadLine(const char** src); 
     nsresult ParseOneFile(const char* filebuf, PRInt16 aFileType,