diff --git a/compiler/libpc300/sc1.c b/compiler/libpc300/sc1.c
index 6fc5aaa3..9e25c7e6 100755
--- a/compiler/libpc300/sc1.c
+++ b/compiler/libpc300/sc1.c
@@ -1449,7 +1449,8 @@ static void setconstants(void)
   add_constant("ucharmax",(1 << (sizeof(cell)-1)*8)-1,sGLOBAL,0);
 
   add_constant("__Pawn",VERSION_INT,sGLOBAL,0);
-  
+  add_constant("__line", 0, sGLOBAL, 0);
+
   pc_anytag=pc_addtag("any");
 
   debug=0;
diff --git a/compiler/libpc300/sc2.c b/compiler/libpc300/sc2.c
index 88290444..5f7839d5 100755
--- a/compiler/libpc300/sc2.c
+++ b/compiler/libpc300/sc2.c
@@ -281,6 +281,7 @@ static void readline(unsigned char *line)
 {
   int i,num,cont;
   unsigned char *ptr;
+  symbol *sym;
 
   if (lptr==term_expr)
     return;
@@ -358,6 +359,9 @@ static void readline(unsigned char *line)
       line+=strlen((char*)line);
     } /* if */
     fline+=1;
+    sym=findconst("__line");
+    assert(sym!=NULL);
+    sym->addr=fline;
   } while (num>=0 && cont);
 }