diff --git a/utils/prompts.c b/utils/prompts.c
index 8784130d..583316f6 100644
--- a/utils/prompts.c
+++ b/utils/prompts.c
@@ -11,6 +11,7 @@ prompts_t *new_prompts(void)
     p->prompts = NULL;
     p->n_prompts = p->prompts_size = 0;
     p->data = NULL;
+    p->idata = -1;
     p->to_server = true; /* to be on the safe side */
     p->name = p->instruction = NULL;
     p->name_reqd = p->instr_reqd = false;