diff --git a/unit_tests/Makefile b/unit_tests/Makefile
index e0cff56aa0..bfbac568fe 100644
--- a/unit_tests/Makefile
+++ b/unit_tests/Makefile
@@ -43,6 +43,7 @@ INCDIR += \
 	$(PROJECT_DIR)/config/boards/hellen \
 	$(UNIT_TESTS_DIR)/test_data_structures \
 	$(UNIT_TESTS_DIR)/chibios-mock \
+	$(UNIT_TESTS_DIR)/native \
 	$(UNIT_TESTS_DIR)/tests \
 	$(UNIT_TESTS_DIR)/tests/sensor \
 	$(UNIT_TESTS_DIR)/test_basic_math
diff --git a/unit_tests/unit_test_rules.mk b/unit_tests/unit_test_rules.mk
index 88207a1e60..1e4dc20e5f 100644
--- a/unit_tests/unit_test_rules.mk
+++ b/unit_tests/unit_test_rules.mk
@@ -132,7 +132,13 @@ OD   = $(TRGT)objdump
 HEX  = $(CP) -O ihex
 BIN  = $(CP) -O binary
 
-AOPT = -fPIC
+AOPT = -fPIC -I$(JAVA_HOME)/include
+
+ifeq ($(OS),Windows_NT)
+ AOPT += -I$(JAVA_HOME)/include/win32
+else
+ AOPT += -I$(JAVA_HOME)/include/linux
+endif
 
 # Define C warning options here
 CWARN = -Wall -Wextra -Wstrict-prototypes -pedantic -Wmissing-prototypes -Wold-style-definition