diff --git a/src/test/Makefile b/src/test/Makefile
index 9fafae5796..8b17344659 100644
--- a/src/test/Makefile
+++ b/src/test/Makefile
@@ -46,7 +46,7 @@ battery_unittest_SRC := \
 		$(USER_DIR)/common/maths.c
 
 
-blackbox_unittest_SRC :=  \
+blackbox_encoding_unittest_SRC :=  \
 		$(USER_DIR)/blackbox/blackbox_encoding.c \
 		$(USER_DIR)/common/encoding.c \
 		$(USER_DIR)/common/printf.c \
diff --git a/src/test/unit/blackbox_unittest.cc b/src/test/unit/blackbox_encoding_unittest.cc
similarity index 100%
rename from src/test/unit/blackbox_unittest.cc
rename to src/test/unit/blackbox_encoding_unittest.cc