diff --git a/docs/source/yosys_internals/extending_yosys/test_suites.rst b/docs/source/yosys_internals/extending_yosys/test_suites.rst
index 2342c505d..e8b6634bc 100644
--- a/docs/source/yosys_internals/extending_yosys/test_suites.rst
+++ b/docs/source/yosys_internals/extending_yosys/test_suites.rst
@@ -164,6 +164,9 @@ compiler versions.  For up to date information, including OS versions, refer to
    test for ``kernel/celledges.cc``, you will need to create a file like this:
    ``tests/unit/kernel/celledgesTest.cc``;
    * Implement your unit test
+   * Add unit test to file list in `CMakeLists.txt`
+   In case unit tests are added to new directory, note that you need also to
+   create new `CmakeList.txt` file and add ``yosys_gtest(dir-name unit-test.cc)```
 
    Run unit tests
    ~~~~~~~~~~~~~~
@@ -172,10 +175,5 @@ compiler versions.  For up to date information, including OS versions, refer to
 
    .. code-block:: console
 
-      make unit-test
+      cmake --build build --target test-unit
 
-   If you want to remove all unit test files, type:
-
-   .. code-block:: console
-
-      make clean-unit-test
diff --git a/tests/unit/Makefile b/tests/unit/Makefile
deleted file mode 100644
index 88f449bf8..000000000
--- a/tests/unit/Makefile
+++ /dev/null
@@ -1,62 +0,0 @@
-UNAME_S := $(shell uname -s)
-
-# GoogleTest flags
-GTEST_PREFIX := $(shell brew --prefix googletest 2>/dev/null)
-ifeq ($(GTEST_PREFIX),)
-  GTEST_CXXFLAGS :=
-  GTEST_LDFLAGS := -lgtest -lgmock -lgtest_main
-else
-  GTEST_CXXFLAGS := -I$(GTEST_PREFIX)/include
-  GTEST_LDFLAGS := -L$(GTEST_PREFIX)/lib -lgtest -lgmock -lgtest_main
-endif
-
-ifeq ($(UNAME_S),Darwin)
-  RPATH = -Wl,-rpath,$(ROOTPATH)
-else
-  RPATH = -Wl,-rpath=$(ROOTPATH)
-endif
-
-EXTRAFLAGS := -lyosys -pthread
-
-MAKEFILE_DIR := $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
-OBJTEST := $(MAKEFILE_DIR)objtest
-BINTEST := $(MAKEFILE_DIR)bintest
-
-ALLTESTFILE := $(shell cd $(MAKEFILE_DIR) && find . -name '*Test.cc' | sed 's|^\./||' | tr '\n' ' ')
-TESTDIRS := $(sort $(dir $(ALLTESTFILE)))
-TESTS := $(addprefix $(BINTEST)/, $(basename $(ALLTESTFILE:%Test.cc=%Test.o)))
-
-# Prevent make from removing our .o files
-.SECONDARY:
-
-all: prepare $(TESTS) run-tests
-
-$(BINTEST)/%: $(OBJTEST)/%.o | prepare
-	$(CXX) -L$(ROOTPATH) $(RPATH) $(LINKFLAGS) -o $@ $^ $(LIBS) \
-		$(GTEST_LDFLAGS) $(EXTRAFLAGS)
-
-$(OBJTEST)/%.o: $(MAKEFILE_DIR)/%.cc | prepare
-	$(CXX) -o $@ -c -I$(ROOTPATH) $(CPPFLAGS) $(CXXFLAGS) $(GTEST_CXXFLAGS) $^
-
-.PHONY: prepare run-tests clean
-
-run-tests: $(TESTS)
-ifeq ($(UNAME_S),Darwin)
-	@for t in $^; do \
-		echo "Running $$t"; \
-		DYLD_LIBRARY_PATH=$(ROOTPATH) $$t || exit 1; \
-	done
-else
-	@for t in $^; do \
-		echo "Running $$t"; \
-		$$t || exit 1; \
-	done
-endif
-
-prepare:
-	mkdir -p $(addprefix $(BINTEST)/,$(TESTDIRS))
-	mkdir -p $(addprefix $(OBJTEST)/,$(TESTDIRS))
-
-clean:
-	rm -rf $(OBJTEST)
-	rm -rf $(BINTEST)