diff --git a/crypto/x509v3/v3_utl.c b/crypto/x509v3/v3_utl.c
index d79f0dee..40f4ade9 100644
--- a/crypto/x509v3/v3_utl.c
+++ b/crypto/x509v3/v3_utl.c
@@ -751,7 +751,7 @@ static const unsigned char *valid_star(const unsigned char *p, size_t len,
 		if (p[i] == '*')
 			{
 			int atstart = (state & LABEL_START);
-			int atend = (i == len - 1 || p[i+i] == '.');
+			int atend = (i == len - 1 || p[i+1] == '.');
 			/*
 			 * At most one wildcard per pattern.
 			 * No wildcards in IDNA labels.