diff --git a/source/amx/amxdbg.c b/source/amx/amxdbg.c
index 069f0d3..b100d28 100644
--- a/source/amx/amxdbg.c
+++ b/source/amx/amxdbg.c
@@ -144,20 +144,19 @@ int AMXAPI dbg_LoadInfo(AMX_DBG *amxdbg, FILE *fp)
       amx_Align32((uint32_t*)&amxdbg->linetbl[index].line);
     } /* for */
   #endif
-  ptr += dbghdr.lines * sizeof(AMX_DBG_LINE);
+  ptr += (uint16_t)dbghdr.lines * sizeof(AMX_DBG_LINE);
 
   /* detect dbghdr.lines overflow */
   while ((line = (AMX_DBG_LINE *)ptr)
          && (cell)line->address > (cell)(line - 1)->address) {
-    dbghdr.lines = -1;
     #if BYTE_ORDER==BIG_ENDIAN
-      for (index = 0; index <= dbghdr.lines; index++) {
+      for (index = 0; index <= UINT16_MAX; index++) {
         amx_AlignCell(&linetbl[index].address);
         amx_Align32((uint32_t*)&linetbl[index].line);
         line++;
       } /* for */
     #endif
-    ptr += ((uint32_t)dbghdr.lines + 1) * sizeof(AMX_DBG_LINE);
+    ptr += ((uint32_t)UINT16_MAX + 1) * sizeof(AMX_DBG_LINE);
   } /* while */
 
   /* symbol table (plus index tags) */