diff --git a/lib/printf/glue.c b/lib/printf/glue.c
index 25e2ff37a3..f799378af3 100644
--- a/lib/printf/glue.c
+++ b/lib/printf/glue.c
@@ -273,6 +273,7 @@ static ssize_t printfrr_va(struct fbuf *buf, struct printfrr_eargs *ea,
 {
 	const struct va_format *vaf = ptr;
 	va_list ap;
+	ssize_t s;
 
 	if (!vaf || !vaf->fmt || !vaf->va)
 		return bputs(buf, "NULL");
@@ -285,6 +286,9 @@ static ssize_t printfrr_va(struct fbuf *buf, struct printfrr_eargs *ea,
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wformat-nonliteral"
 	/* can't format check this */
-	return vbprintfrr(buf, vaf->fmt, ap);
+	s = vbprintfrr(buf, vaf->fmt, ap);
 #pragma GCC diagnostic pop
+	va_end(ap);
+
+	return s;
 }