diff --git a/Makefile.griffin b/Makefile.griffin
index f893cd9350..b49b053205 100644
--- a/Makefile.griffin
+++ b/Makefile.griffin
@@ -157,6 +157,10 @@ ifeq ($(HAVE_LIBSICKSAXIS), 1)
 CFLAGS		+= -DHAVE_LIBSICKSAXIS
 endif
 
+ifeq ($(HAVE_LIBRETRODB), 1)
+CFLAGS		+= -DHAVE_LIBRETRODB
+endif
+
 ifeq ($(HAVE_RPNG), 1)
 CFLAGS      += -DWANT_RPNG
 endif