diff --git a/lib/connect.c b/lib/connect.c
index ac16c3399b..132f80bfa7 100644
--- a/lib/connect.c
+++ b/lib/connect.c
@@ -1195,7 +1195,7 @@ const
 #endif
 struct transport_provider transport_providers[] = {
   { TRNSPRT_TCP, Curl_cf_tcp_create },
-#ifdef USE_HTTP3
+#if !defined(CURL_DISABLE_HTTP) && defined(USE_HTTP3)
   { TRNSPRT_QUIC, Curl_cf_quic_create },
 #endif
 #ifndef CURL_DISABLE_TFTP
diff --git a/lib/version.c b/lib/version.c
index d58e068c53..ebf20aa30a 100644
--- a/lib/version.c
+++ b/lib/version.c
@@ -200,7 +200,7 @@ char *curl_version(void)
 #if !defined(CURL_DISABLE_HTTP) && defined(USE_NGHTTP2)
   char h2_version[30];
 #endif
-#ifdef USE_HTTP3
+#if !defined(CURL_DISABLE_HTTP) && defined(USE_HTTP3)
   char h3_version[30];
 #endif
 #ifdef USE_LIBRTMP
@@ -262,7 +262,7 @@ char *curl_version(void)
   Curl_http2_ver(h2_version, sizeof(h2_version));
   src[i++] = h2_version;
 #endif
-#ifdef USE_HTTP3
+#if !defined(CURL_DISABLE_HTTP) && defined(USE_HTTP3)
   Curl_quic_ver(h3_version, sizeof(h3_version));
   src[i++] = h3_version;
 #endif
@@ -491,7 +491,7 @@ static const struct feat features_table[] = {
 #if !defined(CURL_DISABLE_HTTP) && defined(USE_NGHTTP2)
   FEATURE("HTTP2",       NULL,                CURL_VERSION_HTTP2),
 #endif
-#if defined(USE_HTTP3)
+#if !defined(CURL_DISABLE_HTTP) && defined(USE_HTTP3)
   FEATURE("HTTP3",       NULL,                CURL_VERSION_HTTP3),
 #endif
 #if defined(USE_SSL) && !defined(CURL_DISABLE_PROXY) && \
@@ -673,7 +673,7 @@ curl_version_info_data *curl_version_info(CURLversion stamp)
   }
 #endif
 
-#ifdef USE_HTTP3
+#if !defined(CURL_DISABLE_HTTP) && defined(USE_HTTP3)
   {
     static char quicbuffer[80];
     Curl_quic_ver(quicbuffer, sizeof(quicbuffer));
diff --git a/lib/vquic/curl_osslq.c b/lib/vquic/curl_osslq.c
index 477e883e6a..4026ffc392 100644
--- a/lib/vquic/curl_osslq.c
+++ b/lib/vquic/curl_osslq.c
@@ -24,7 +24,8 @@
 
 #include "../curl_setup.h"
 
-#if defined(USE_OPENSSL_QUIC) && defined(USE_NGHTTP3)
+#if !defined(CURL_DISABLE_HTTP) && defined(USE_OPENSSL_QUIC) && \
+  defined(USE_NGHTTP3)
 
 #include <openssl/ssl.h>
 #include <openssl/bio.h>
@@ -2443,4 +2444,4 @@ void Curl_osslq_ver(char *p, size_t len)
   (void)msnprintf(p, len, "nghttp3/%s", ht3->version_str);
 }
 
-#endif /* USE_OPENSSL_QUIC && USE_NGHTTP3 */
+#endif /* !CURL_DISABLE_HTTP && USE_OPENSSL_QUIC && USE_NGHTTP3 */
diff --git a/lib/vquic/curl_osslq.h b/lib/vquic/curl_osslq.h
index a2809c92bc..9f5025f8ae 100644
--- a/lib/vquic/curl_osslq.h
+++ b/lib/vquic/curl_osslq.h
@@ -26,7 +26,8 @@
 
 #include "../curl_setup.h"
 
-#if defined(USE_OPENSSL_QUIC) && defined(USE_NGHTTP3)
+#if !defined(CURL_DISABLE_HTTP) && defined(USE_OPENSSL_QUIC) && \
+  defined(USE_NGHTTP3)
 
 #ifdef HAVE_NETINET_UDP_H
 #include <netinet/udp.h>
diff --git a/lib/vquic/vquic.c b/lib/vquic/vquic.c
index 691c0d3fa7..c686058ae8 100644
--- a/lib/vquic/vquic.c
+++ b/lib/vquic/vquic.c
@@ -52,7 +52,7 @@
 #include "../memdebug.h"
 
 
-#ifdef USE_HTTP3
+#if !defined(CURL_DISABLE_HTTP) && defined(USE_HTTP3)
 
 #define NW_CHUNK_SIZE     (64 * 1024)
 #define NW_SEND_CHUNKS    2
@@ -728,7 +728,7 @@ CURLcode Curl_conn_may_http3(struct Curl_easy *data,
   return CURLE_OK;
 }
 
-#else /* USE_HTTP3 */
+#else /* CURL_DISABLE_HTTP || !USE_HTTP3 */
 
 CURLcode Curl_conn_may_http3(struct Curl_easy *data,
                              const struct connectdata *conn,
@@ -741,4 +741,4 @@ CURLcode Curl_conn_may_http3(struct Curl_easy *data,
   return CURLE_NOT_BUILT_IN;
 }
 
-#endif /* !USE_HTTP3 */
+#endif /* !CURL_DISABLE_HTTP && USE_HTTP3 */
diff --git a/lib/vquic/vquic.h b/lib/vquic/vquic.h
index 3577a857e3..0f81334f29 100644
--- a/lib/vquic/vquic.h
+++ b/lib/vquic/vquic.h
@@ -26,7 +26,7 @@
 
 #include "../curl_setup.h"
 
-#ifdef USE_HTTP3
+#if !defined(CURL_DISABLE_HTTP) && defined(USE_HTTP3)
 struct Curl_cfilter;
 struct Curl_easy;
 struct connectdata;
@@ -51,7 +51,7 @@ extern struct Curl_cftype Curl_cft_http3;
 
 #else
 #define Curl_vquic_init() 1
-#endif /* !USE_HTTP3 */
+#endif /* !CURL_DISABLE_HTTP && USE_HTTP3 */
 
 CURLcode Curl_conn_may_http3(struct Curl_easy *data,
                              const struct connectdata *conn,