diff --git a/src/ipt/NATCompiler_PrintRule.cpp b/src/ipt/NATCompiler_PrintRule.cpp
index 8065835db..edbcc735a 100644
--- a/src/ipt/NATCompiler_PrintRule.cpp
+++ b/src/ipt/NATCompiler_PrintRule.cpp
@@ -392,7 +392,7 @@ string NATCompiler_ipt::PrintRule::_printDstService(RuleElementOSrv  *rel)
         if (TagService::isA(srv))
         {
 	    ostr << "-m mark --mark "
-                 << TagService::cast(srv)->getCode() << " ";
+                 << TagService::constcast(srv)->getCode() << " ";
         }
 
     } else {
diff --git a/src/ipt/PolicyCompiler_PrintRule.cpp b/src/ipt/PolicyCompiler_PrintRule.cpp
index 9e7fecfdf..d5d3bf40e 100644
--- a/src/ipt/PolicyCompiler_PrintRule.cpp
+++ b/src/ipt/PolicyCompiler_PrintRule.cpp
@@ -861,7 +861,7 @@ string PolicyCompiler_ipt::PrintRule::_printDstService(RuleElementSrv  *rel)
         if (TagService::isA(srv))
         {
 	    ostr << "-m mark --mark "
-                 << TagService::cast(srv)->getCode() << " ";
+                 << TagService::constcast(srv)->getCode() << " ";
         }
         if (UserService::isA(srv))
         {
diff --git a/src/pflib/NATCompiler_pf_writers.cpp b/src/pflib/NATCompiler_pf_writers.cpp
index ac39e4f5e..b89c665de 100644
--- a/src/pflib/NATCompiler_pf_writers.cpp
+++ b/src/pflib/NATCompiler_pf_writers.cpp
@@ -256,7 +256,7 @@ void NATCompiler_pf::PrintRule::_printPort(Service *srv,bool print_range_end)
     }
     if (TagService::isA(srv)) 
     {
-	compiler->output << "tagged " << TagService::cast(srv)->getCode() << " ";
+	compiler->output << "tagged " << TagService::constcast(srv)->getCode() << " ";
     }
 }
 
diff --git a/src/pflib/PolicyCompiler_pf_writers.cpp b/src/pflib/PolicyCompiler_pf_writers.cpp
index a7d3641dc..bcbcd863b 100644
--- a/src/pflib/PolicyCompiler_pf_writers.cpp
+++ b/src/pflib/PolicyCompiler_pf_writers.cpp
@@ -562,7 +562,7 @@ string PolicyCompiler_pf::PrintRule::_printDstService(Service *srv,bool neg)
 
     if (TagService::isA(srv)) 
     {
-	str << "tagged " << TagService::cast(srv)->getCode() << " ";
+	str << "tagged " << TagService::constcast(srv)->getCode() << " ";
     }
 
     return str.str();