diff --git a/configure b/configure
index 303c90a1..c7d78bf1 100755
--- a/configure
+++ b/configure
@@ -368,6 +368,8 @@ fi
 if [ "$CC" = "tcc" ]; then
 	echo "CFLAGS += -Wno-error" >>$CONFIG_MK
 fi
+# openssl 3 compatibility
+echo "CFLAGS += -Wno-error=deprecated-declarations">>$CONFIG_MK
 
 # libfetch
 echo "CPPFLAGS +=	-I\$(TOPDIR)/lib/fetch" >>$CONFIG_MK