diff --git a/tools/fpga_compress/Makefile b/tools/fpga_compress/Makefile
index c76a4c4eb..fccb94b41 100644
--- a/tools/fpga_compress/Makefile
+++ b/tools/fpga_compress/Makefile
@@ -10,6 +10,8 @@ LD = g++
 RM = rm -f
 MV = mv
 
+platform = $(shell uname)
+
 VPATH = ../../common/zlib
 OBJDIR = obj