diff --git a/appl/popper/pop_pass.c b/appl/popper/pop_pass.c
index 54d7d86d6..c2f08fb01 100644
--- a/appl/popper/pop_pass.c
+++ b/appl/popper/pop_pass.c
@@ -15,7 +15,7 @@ int
 pop_pass (POP *p)
 {
     struct passwd  *pw;
-    char lrealm[REALM_SZ];
+    char lrealm[REALM_SZ + 1];
     int status; 
     int i;