diff --git a/glide3x/sst1/glide3/src/makefile.linux b/glide3x/sst1/glide3/src/makefile.linux
index 0c49bfc..a7b9917 100644
--- a/glide3x/sst1/glide3/src/makefile.linux
+++ b/glide3x/sst1/glide3/src/makefile.linux
@@ -69,7 +69,7 @@ CP = cp
 CDEFS = -D__linux__ -DINIT_LINUX
 
 # general
-CDEFS += -DGLIDE_HARDWARE
+CDEFS += -DGLIDE3 -DGLIDE_HARDWARE
 
 # subsystem
 ifeq ($(FX_GLIDE_HW),sst1)