diff --git a/src/modules/graphic/ssggraph/grcarlight.h b/src/modules/graphic/ssggraph/grcarlight.h
index 32f3f5fac..930304b60 100644
--- a/src/modules/graphic/ssggraph/grcarlight.h
+++ b/src/modules/graphic/ssggraph/grcarlight.h
@@ -69,7 +69,7 @@ public:
 
   virtual const char *getTypeName(void)  { return ssgVtxTable::getTypeName();}
 
-  virtual void print ( FILE *fd = stderr, char *indent = "", int how_much = 2) { ssgVtxTable::print(fd,indent,how_much);}
+  virtual void print ( FILE *fd = stderr, const char *indent = "", int how_much = 2) { ssgVtxTable::print(fd,const_cast<char*>(indent),how_much);}
   virtual int load ( FILE *fd )  {return  ssgVtxTable::load(fd);}
   virtual int save ( FILE *fd )  {return  ssgVtxTable::save(fd);}
 };
diff --git a/src/modules/graphic/ssggraph/grshadow.h b/src/modules/graphic/ssggraph/grshadow.h
index 462db9513..2087f8a5b 100644
--- a/src/modules/graphic/ssggraph/grshadow.h
+++ b/src/modules/graphic/ssggraph/grshadow.h
@@ -45,7 +45,7 @@ public:
 
   virtual ~ssgVtxTableShadow (void);
   virtual const char *getTypeName(void)  { return ssgVtxTable::getTypeName();}
-  virtual void print ( FILE *fd = stderr, char *indent = "", int how_much = 2) { ssgVtxTable::print(fd,indent,how_much);}
+  virtual void print ( FILE *fd = stderr, const char *indent = "", int how_much = 2) { ssgVtxTable::print(fd,const_cast<char*>(indent),how_much);}
   virtual int load ( FILE *fd )  {return  ssgVtxTable::load(fd);}
   virtual int save ( FILE *fd )  {return  ssgVtxTable::save(fd);}
 };
diff --git a/src/modules/graphic/ssggraph/grsmoke.h b/src/modules/graphic/ssggraph/grsmoke.h
index 7c65c202c..5d0bb9e76 100644
--- a/src/modules/graphic/ssggraph/grsmoke.h
+++ b/src/modules/graphic/ssggraph/grsmoke.h
@@ -95,7 +95,7 @@ public:
 
     virtual const char *getTypeName(void)  { return ssgVtxTable::getTypeName();}
 
-    virtual void print ( FILE *fd = stderr, char *indent = "", int how_much = 2) { ssgVtxTable::print(fd,indent,how_much);}
+    virtual void print ( FILE *fd = stderr, const char *indent = "", int how_much = 2) { ssgVtxTable::print(fd,const_cast<char*>(indent),how_much);}
     virtual int load ( FILE *fd )  {return  ssgVtxTable::load(fd);}
     virtual int save ( FILE *fd )  {return  ssgVtxTable::save(fd);}
 };