diff --git a/src/event/quic/ngx_event_quic_ssl.c b/src/event/quic/ngx_event_quic_ssl.c
index 6b0bae1ed..877aa84af 100644
--- a/src/event/quic/ngx_event_quic_ssl.c
+++ b/src/event/quic/ngx_event_quic_ssl.c
@@ -12,6 +12,7 @@
 
 #if defined OPENSSL_IS_BORINGSSL                                              \
     || defined LIBRESSL_VERSION_NUMBER                                        \
+    || defined BABASSL_VERSION_NUMBER                                         \
     || NGX_QUIC_OPENSSL_COMPAT
 #define NGX_QUIC_BORINGSSL_API   1
 #endif