diff --git a/vvp/compile.cc b/vvp/compile.cc
index ef1e49bf9..1f8bbf024 100644
--- a/vvp/compile.cc
+++ b/vvp/compile.cc
@@ -639,7 +639,7 @@ struct code_label_resolv_list_s: public resolv_list_s {
 bool code_label_resolv_list_s::resolve(bool mes)
 {
       symbol_value_t val = sym_get_value(sym_codespace, label());
-      if (val.num) {
+      if (val.ptr) {
 	    if (code->opcode == of_FORK)
 		  code->cptr2 = reinterpret_cast<vvp_code_t>(val.ptr);
 	    else
diff --git a/vvp/symbols.cc b/vvp/symbols.cc
index e39920c4e..4f5a30f19 100644
--- a/vvp/symbols.cc
+++ b/vvp/symbols.cc
@@ -338,7 +338,7 @@ symbol_value_t symbol_table_s::find_value_(struct tree_node_*cur,
 
       assert(0);
       { symbol_value_t tmp;
-        tmp.num = 0;
+        tmp.ptr = 0;
         return tmp;
       }
 }
@@ -366,7 +366,7 @@ void symbol_table_s::sym_set_value(const char*key, symbol_value_t val)
 symbol_value_t symbol_table_s::sym_get_value(const char*key)
 {
       symbol_value_t def;
-      def.num = 0;
+      def.ptr = 0;
 
       if (root->count == 0) {
 	      /* Handle the special case that this is the very first
diff --git a/vvp/symbols.h b/vvp/symbols.h
index dd21f8fb7..922bb8f08 100644
--- a/vvp/symbols.h
+++ b/vvp/symbols.h
@@ -49,7 +49,6 @@ typedef struct symbol_value_s {
       union {
 	    vvp_net_t*net;
 	    void*ptr;
-	    unsigned long num;
       };
 } symbol_value_t;