1 files changed, 1 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index b1d94e16a..7f4e5c9b1 100644
--- a/Makefile
+++ b/Makefile
@@ -281,6 +281,7 @@ $(eval $(call add_include_file,backends/ilang/ilang_backend.h))
 
 OBJS += kernel/driver.o kernel/register.o kernel/rtlil.o kernel/log.o kernel/calc.o kernel/yosys.o kernel/cellaigs.o
 kernel/log.o: CXXFLAGS += -DYOSYS_SRC='"$(YOSYS_SRC)"'
+kernel/yosys.o: CXXFLAGS += -DYOSYS_DATDIR='"$(DATDIR)"'
 
 OBJS += libs/bigint/BigIntegerAlgorithms.o libs/bigint/BigInteger.o libs/bigint/BigIntegerUtils.o
 OBJS += libs/bigint/BigUnsigned.o libs/bigint/BigUnsignedInABase.o