diff --git a/crypto/x509v3/v3_alt.c b/crypto/x509v3/v3_alt.c
index 410aa15b6..62d895de0 100644
--- a/crypto/x509v3/v3_alt.c
+++ b/crypto/x509v3/v3_alt.c
@@ -67,7 +67,7 @@
 
 #ifndef NOPROTO
 static STACK *i2v_GENERAL_NAMES(X509V3_EXT_METHOD *method, STACK *gen);
-static STACK *v2i_GENERAL_NAMES(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK *values);
+/*static STACK *v2i_GENERAL_NAMES(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK *values);*/
 #endif
 
 X509V3_EXT_METHOD v3_alt[] = {