diff --git a/GNUmakefile b/GNUmakefile
index 2099621c..5de9b82d 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -57,6 +57,7 @@ LDFLAGS += \
 	-lbsd \
 	-lnetwork \
 	-Wno-stringop-overflow
+USE_SYSTEM_SSL := 1
 else ifeq ($(UNAME_S),OpenBSD)
 BUILD_TYPES := debug release
 CFLAGS += \
@@ -66,6 +67,7 @@ LDFLAGS += \
 	-lc++abi
 HAVE_ANDROID :=
 HAVE_LINUX_IOS :=
+USE_SYSTEM_SSL := 1
 else
 $(error Unexpected host platform $(UNAME_S).)
 endif