diff --git a/src/Makefile.defs b/src/Makefile.defs
index a40cfa55cd3..ca7d525b688 100644
--- a/src/Makefile.defs
+++ b/src/Makefile.defs
@@ -181,7 +181,7 @@ LD_EXTRA_OPTS ?=
 
 
 # enable workaround for libssl 1.1+ to set shared mutex attribute
-LIBSSL_SET_MUTEX_SHARED ?=
+LIBSSL_SET_MUTEX_SHARED ?= 1
 ifneq ($(LIBSSL_SET_MUTEX_SHARED), 1)
 
 ifeq ($(CROSS_COMPILE),)