diff --git a/tcc.c b/tcc.c
index 97d4445..deaa411 100644
--- a/tcc.c
+++ b/tcc.c
@@ -184,8 +184,8 @@ typedef struct SValue {
 /* symbol management */
 typedef struct Sym {
     int v;    /* symbol token */
-    int r;    /* associated register */
-    int c;    /* associated number */
+    long r;    /* associated register */
+    long c;    /* associated number */
     CType type;    /* associated type */
     struct Sym *next; /* next related symbol */
     struct Sym *prev; /* prev symbol in stack */
@@ -1846,7 +1846,7 @@ char *get_tok_str(int v, CValue *cv)
 }
 
 /* push, without hashing */
-static Sym *sym_push2(Sym **ps, int v, int t, int c)
+static Sym *sym_push2(Sym **ps, int v, int t, long c)
 {
     Sym *s;
     s = sym_malloc();
@@ -2640,7 +2640,7 @@ static inline void define_push(int v, int macro_type, int *str, Sym *first_arg)
 {
     Sym *s;
 
-    s = sym_push2(&define_stack, v, macro_type, (int)str);
+    s = sym_push2(&define_stack, v, macro_type, (long)str);
     s->next = first_arg;
     table_ident[v - TOK_IDENT]->sym_define = s;
 }