diff --git a/libhttp/ssl.c b/libhttp/ssl.c
index 61a1d0c..b0987e3 100644
--- a/libhttp/ssl.c
+++ b/libhttp/ssl.c
@@ -270,7 +270,8 @@ int serverSupportsSSL(void) {
 #endif
 }
 
-void sslGenerateCertificate(const char *certificate, const char *serverName) {
+static void sslGenerateCertificate(const char *certificate,
+                                   const char *serverName) {
 #if defined(HAVE_OPENSSL)
  debug("Auto-generating missing certificate \"%s\" for \"%s\"",
        certificate, serverName);
diff --git a/libhttp/ssl.h b/libhttp/ssl.h
index e273a65..2ba43cf 100644
--- a/libhttp/ssl.h
+++ b/libhttp/ssl.h
@@ -178,7 +178,6 @@ struct SSLSupport *newSSL();
 void initSSL(struct SSLSupport *ssl);
 void destroySSL(struct SSLSupport *ssl);
 void deleteSSL(struct SSLSupport *ssl);
-void sslGenerateCertificate(const char *certificate, const char *serverName);
 void sslSetCertificate(struct SSLSupport *ssl, const char *filename,
                        int autoGenerateMissing);
 void sslSetCertificateFd(struct SSLSupport *ssl, int fd);