diff --git a/Source/kwsys/Registry.cxx b/Source/kwsys/Registry.cxx
index 39ab98d51..ce15abdf4 100644
--- a/Source/kwsys/Registry.cxx
+++ b/Source/kwsys/Registry.cxx
@@ -482,7 +482,6 @@ bool RegistryHelper::Close()
 #endif
   if ( m_RegistryType == Registry::UNIX_REGISTRY )
     {
-    int res = 0;
     if ( !m_Changed )
       {
       this->EntriesMap.erase(
@@ -490,24 +489,24 @@ bool RegistryHelper::Close()
         this->EntriesMap.end());
       m_Empty = 1;
       this->SetSubKey(0);
-      return 1;
+      return true;
       }
 
     kwsys_ios::ostringstream str;
     if ( !getenv("HOME") )
       {
-      return 0;
+      return false;
       }
     str << getenv("HOME") << "/." << this->GetTopLevel() << "rc";
     kwsys_ios::ofstream *ofs = new kwsys_ios::ofstream(str.str().c_str(), kwsys_ios::ios::out);
     if ( !ofs )
       {
-      return 0;
+      return false;
       }
     if ( ofs->fail())
       {
       delete ofs;
-      return 0;
+      return false;
       }
     *ofs << "# This file is automatically generated by the application" << kwsys_ios::endl
       << "# If you change any lines or add new lines, note that all" << kwsys_ios::endl
@@ -531,10 +530,9 @@ bool RegistryHelper::Close()
       this->EntriesMap.end());
     ofs->close();
     delete ofs;
-    res = 1;
     this->SetSubKey(0);
     m_Empty = 1;
-    return res;
+    return true;
     }
   return false;
 }
@@ -557,18 +555,18 @@ bool RegistryHelper::ReadValue(const char *skey, char *value)
 #endif
   if ( m_RegistryType == Registry::UNIX_REGISTRY )
     {
-    int res = 0;
+    bool res = false;
     char *key = this->CreateKey( skey );
     if ( !key )
       {
-      return 0;
+      return false;
       }
     RegistryHelper::StringToStringMap::iterator it
       = this->EntriesMap.find(key);
     if ( it != this->EntriesMap.end() )
       {
       strcpy(value, it->second.c_str());
-      res = 1;
+      res = true;
       }
     delete [] key;
     return res;
@@ -590,7 +588,7 @@ bool RegistryHelper::DeleteKey(const char* key)
   if ( m_RegistryType == Registry::UNIX_REGISTRY )
     {
     (void)key;
-    int res = 0;
+    bool res = false;
     return res;
     }
   return false;
@@ -612,11 +610,11 @@ bool RegistryHelper::DeleteValue(const char *skey)
     char *key = this->CreateKey( skey );
     if ( !key )
       {
-      return 0;
+      return false;
       }
     this->EntriesMap.erase(key);
     delete [] key;
-    return 1;
+    return true;
     }
   return false;
 }