diff --git a/src/uxnasm.c b/src/uxnasm.c
index b229da3..9e8e0e1 100644
--- a/src/uxnasm.c
+++ b/src/uxnasm.c
@@ -408,6 +408,7 @@ static int
 assemble(FILE *f)
 {
 	char w[0x40];
+	p.ptr = 0x100;
 	scpy("on-reset", p.scope, 0x40);
 	while(fscanf(f, "%62s", w) == 1)
 		if(slen(w) > 0x3d || !parse(w, f))