diff --git a/src/common/intl.cpp b/src/common/intl.cpp
index 34e2fc3938..f72741e85d 100644
--- a/src/common/intl.cpp
+++ b/src/common/intl.cpp
@@ -1130,7 +1130,7 @@ bool wxMsgCatalogFile::Load(const wxChar *szDirPrefix, const wxChar *szName0,
 
   // read the whole file in memory
   m_pData = new size_t8[nSize];
-  if ( fileMsg.Read(m_pData, nSize) != nSize ) {
+  if ( fileMsg.Read(m_pData, (size_t)nSize) != nSize ) {
     wxDELETEA(m_pData);
     return false;
   }
@@ -1161,7 +1161,7 @@ bool wxMsgCatalogFile::Load(const wxChar *szDirPrefix, const wxChar *szName0,
                    Swap(pHeader->ofsOrigTable));
   m_pTransTable = (wxMsgTableEntry *)(m_pData +
                    Swap(pHeader->ofsTransTable));
-  m_nSize = nSize;
+  m_nSize = (size_t32)nSize;
 
   // now parse catalog's header and try to extract catalog charset and
   // plural forms formula from it: