diff --git a/sgsnemu/sgsnemu.c b/sgsnemu/sgsnemu.c
index bb55b1c..630733b 100644
--- a/sgsnemu/sgsnemu.c
+++ b/sgsnemu/sgsnemu.c
@@ -1400,7 +1400,7 @@
 		return EOF;	/* Not what we expected */
 	}
 
-	if (in46a_from_eua(&pdp->eua, &addr)) {
+	if (in46a_from_eua(&pdp->eua, &addr) < 1) {
 		printf
 		    ("Received create PDP context response. Cause value: %d\n",
 		     cause);