diff --git a/tests/unit/modules/pulse_gen/CMakeLists.txt b/tests/unit/modules/pulse_gen/CMakeLists.txt
index 8f0bc24..bc2cbf0 100644
--- a/tests/unit/modules/pulse_gen/CMakeLists.txt
+++ b/tests/unit/modules/pulse_gen/CMakeLists.txt
@@ -1,16 +1,14 @@
 # define the test executable
-add_executable(pulse_gen_tests
-  test_pulse_gen.cpp
-  ../../../../src/modules/pulse_gen.cpp
-  ../../../../src/modules/speed_table.cpp
-  ../stubs/stub_shr16.cpp
-  ../stubs/stub_gpio.cpp
-)
+add_executable(
+  pulse_gen_tests
+  ${CMAKE_SOURCE_DIR}/src/modules/pulse_gen.cpp ${CMAKE_SOURCE_DIR}/src/modules/speed_table.cpp
+  ${MODULES_STUBS_DIR}/stub_gpio.cpp ${MODULES_STUBS_DIR}/stub_shr16.cpp test_pulse_gen.cpp
+  )
 
 # define required search paths
 target_include_directories(
   pulse_gen_tests PUBLIC ${CMAKE_SOURCE_DIR}/src/modules ${CMAKE_SOURCE_DIR}/src/hal
-)
+  )
 
 # tell build system about the test case
 add_catch_test(pulse_gen_tests)
diff --git a/tests/unit/modules/speed_table/CMakeLists.txt b/tests/unit/modules/speed_table/CMakeLists.txt
index 947bfed..858f68f 100644
--- a/tests/unit/modules/speed_table/CMakeLists.txt
+++ b/tests/unit/modules/speed_table/CMakeLists.txt
@@ -1,12 +1,10 @@
 # define the test executable
-add_executable(speed_table_tests
-  test_speed_table.cpp
-  ../../../../src/modules/speed_table.cpp)
+add_executable(
+  speed_table_tests ${CMAKE_SOURCE_DIR}/src/modules/speed_table.cpp test_speed_table.cpp
+  )
 
 # define required search paths
-target_include_directories(
-  speed_table_tests PUBLIC ${CMAKE_SOURCE_DIR}/src/modules
-)
+target_include_directories(speed_table_tests PUBLIC ${CMAKE_SOURCE_DIR}/src/modules)
 
 # tell build system about the test case
 add_catch_test(speed_table_tests)