diff --git a/pkg/tinydtls/Makefile.include b/pkg/tinydtls/Makefile.include
index d5d3a2fd7b..d43b9c99c7 100644
--- a/pkg/tinydtls/Makefile.include
+++ b/pkg/tinydtls/Makefile.include
@@ -14,7 +14,7 @@ ifneq (,$(filter tinydtls,$(USEMODULE)))
   # Dependencies partially under control of the App's requirements
 
   # The configuration for socket overrides Sock
-  ifeq (,$(filter WITH_RIOT_SOCKETS,$(CFLAGS)))
+  ifeq (,$(filter posix_sockets,$(USEMODULE)))
     CFLAGS += -DWITH_RIOT_GNRC
   endif