--- /dev/null
+diff --git a/as31/run.c b/as31/run.c
+index 9e5263b..6010ee8 100644
+--- a/as31/run.c
++++ b/as31/run.c
+@@ -34,10 +34,10 @@ int run_as31(const char *infile, int lst, int use_stdout,
+ FILE* finPre;
+ char tmpName[256];
+ char *lineBuffer=NULL;
+- int sizeBuf=0;
++ long unsigned int sizeBuf=0;
+ char *includePtr=NULL;
+ char *incLineBuffer=NULL;
+- int incSizeBuf=0;
++ long unsigned int incSizeBuf=0;
+ FILE* includeFile=NULL;
+ int fd;
+