diff --git a/.github/matrix.py b/.github/matrix.py
index dd2a61d..b75614c 100644
--- a/.github/matrix.py
+++ b/.github/matrix.py
@@ -112,6 +112,8 @@
         flags = ["USE_OPENSSL=1"]
         if ssl == "BORINGSSL=yes":
             flags.append("USE_QUIC=1")
+        if ssl == "OPENSSL_VERSION=3.0.0-alpha17":
+            flags.append('DEBUG_CFLAGS="-g -Wno-deprecated-declarations"')
         if ssl != "stock":
             flags.append("SSL_LIB=${HOME}/opt/lib")
             flags.append("SSL_INC=${HOME}/opt/include")