diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e76b795..1f497bf 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -30,7 +30,7 @@ jobs:
         run: pacman --noconfirm -Syu alsa-lib base-devel cairo carla git glibc-debug hicolor-icon-theme jack2 jq libglvnd libsndfile libx11 libxrandr lv2lint php valgrind gstreamer gst-plugins-base
       - uses: actions/checkout@v3
       - name: Configure project
-        run: make config STRICT=1 VERBOSE=1 FEATURES='clap doc jack gst ladspa lv2 vst2 vst3 xdg' PREFIX=/usr
+        run: make config STRICT=1 VERBOSE=1 FEATURES='clap doc jack gst ladspa lv2 ui vst2 vst3 xdg' PREFIX=/usr
       - name: Fetch project dependencies
         run: make fetch
       - name: Build project
@@ -75,7 +75,7 @@ jobs:
         run: pacman --noconfirm -Syu alsa-lib base-devel cairo carla git glibc-debug hicolor-icon-theme jack2 jq libglvnd libsndfile libx11 libxrandr php valgrind gstreamer gst-plugins-base
       - uses: actions/checkout@v3
       - name: Configure project
-        run: make config STRICT=1 DEBUG=1 VERBOSE=1 ASAN=1 FEATURES='clap jack gst ladspa lv2 vst2 vst3' PREFIX=/usr
+        run: make config STRICT=1 DEBUG=1 VERBOSE=1 ASAN=1 FEATURES='clap jack gst ladspa ui lv2 vst2 vst3' PREFIX=/usr
       - name: Fetch project dependencies
         run: make fetch
       - name: Build project
@@ -116,7 +116,7 @@ jobs:
         run: pacman --noconfirm -Syu alsa-lib base-devel cairo carla git glibc-debug hicolor-icon-theme jack2 jq libglvnd libsndfile libx11 libxrandr php valgrind gstreamer gst-plugins-base
       - uses: actions/checkout@v3
       - name: Configure project
-        run: make config STRICT=1 DEBUG=1 VERBOSE=1 FEATURES='clap jack gst ladspa lv2 vst2 vst3' PREFIX=/usr
+        run: make config STRICT=1 DEBUG=1 VERBOSE=1 FEATURES='clap jack gst ladspa lv2 ui vst2 vst3' PREFIX=/usr
       - name: Fetch project dependencies
         run: make fetch
       - name: Build project
@@ -150,7 +150,7 @@ jobs:
         run: zypper --non-interactive --no-gpg-checks in tar gzip gcc gcc-c++ git make php valgrind libX11-devel libXrandr-devel Mesa-libGL-devel libjack-devel cairo-devel freetype2-devel libsndfile-devel gstreamer-devel gstreamer-plugins-base-devel
       - uses: actions/checkout@v3
       - name: Configure project
-        run: make config STRICT=1 VERBOSE=1 FEATURES='clap doc jack gst ladspa lv2 vst2 vst3 xdg' PREFIX=/usr
+        run: make config STRICT=1 VERBOSE=1 FEATURES='clap doc jack gst ladspa lv2 ui vst2 vst3 xdg' PREFIX=/usr
       - name: Fetch project dependencies
         run: make fetch
       - name: Build project
@@ -167,7 +167,7 @@ jobs:
         run: zypper --non-interactive --no-gpg-checks in tar gzip gcc gcc-c++ clang lld git make php8-cli valgrind libstdc++-devel libX11-devel libXrandr-devel Mesa-libGL-devel libjack-devel cairo-devel freetype2-devel libsndfile-devel gstreamer-devel gstreamer-plugins-base-devel
       - uses: actions/checkout@v3
       - name: Configure project
-        run: make config CC=clang CXX=clang++ STRICT=1 VERBOSE=1 FEATURES='clap doc jack gst ladspa lv2 vst2 vst3 xdg' PREFIX=/usr
+        run: make config CC=clang CXX=clang++ STRICT=1 VERBOSE=1 FEATURES='clap doc jack gst ladspa lv2 ui vst2 vst3 xdg' PREFIX=/usr
       - name: Fetch project dependencies
         run: make fetch
       - name: Build project
@@ -186,7 +186,7 @@ jobs:
         run: apt-get -y install gcc g++ git make php-cli pkg-config valgrind libx11-dev libxrandr-dev libjack-dev libcairo2-dev libgl-dev libfreetype6-dev libsndfile1-dev libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev
       - uses: actions/checkout@v3
       - name: Configure project
-        run: make config STRICT=1 VERBOSE=1 FEATURES='clap doc jack gst ladspa lv2 vst2 vst3 xdg' PREFIX=/usr
+        run: make config STRICT=1 VERBOSE=1 FEATURES='clap doc jack gst ladspa lv2 ui vst2 vst3 xdg' PREFIX=/usr
       - name: Fetch project dependencies
         run: make fetch
       - name: Build project
@@ -213,7 +213,7 @@ jobs:
       - uses: actions/checkout@v3
       - name: Configure project
         shell: msys2 {0}
-        run: make config STRICT=1 VERBOSE=1 FEATURES='clap ladspa lv2 vst2 vst3'
+        run: make config STRICT=1 VERBOSE=1 FEATURES='clap ladspa lv2 ui vst2 vst3'
       - name: Fetch project dependencies
         shell: msys2 {0}
         run: make fetch
diff --git a/dependencies.mk b/dependencies.mk
index f1051e6..51d7f41 100644
--- a/dependencies.mk
+++ b/dependencies.mk
@@ -37,7 +37,7 @@ DEPENDENCIES = \
 TEST_DEPENDENCIES = \
   LSP_TEST_FW
 
-DEFAULT_FEATURES = clap doc ladspa lv2 vst2 vst3 xdg
+DEFAULT_FEATURES = clap doc ladspa lv2 ui vst2 vst3 xdg
 
 #------------------------------------------------------------------------------
 # Linux dependencies
diff --git a/src/Makefile b/src/Makefile
index 4bf6127..b47c061 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -58,8 +58,12 @@ ARTIFACT_OBJ_DSP        = $(ARTIFACT_BIN)/$($(ARTIFACT_ID)_NAME)-dsp.o
 ARTIFACT_OBJ_SHARED     = $(ARTIFACT_BIN)/$($(ARTIFACT_ID)_NAME)-shared.o
 ARTIFACT_OBJ_UI         = $(ARTIFACT_BIN)/$($(ARTIFACT_ID)_NAME)-ui.o
 ARTIFACT_OBJ_TEST       = $(ARTIFACT_BIN)/$($(ARTIFACT_ID)_NAME)-test.o
-ARTIFACT_OBJ            = $(ARTIFACT_OBJ_META) $(ARTIFACT_OBJ_DSP) $(ARTIFACT_OBJ_SHARED) $(ARTIFACT_OBJ_UI)
 ARTIFACT_CFLAGS         = $(foreach dep, $(DEPENDENCIES), $(if $($(dep)_CFLAGS), $($(dep)_CFLAGS)))
+ARTIFACT_OBJ            = \
+  $(ARTIFACT_OBJ_META) \
+  $(ARTIFACT_OBJ_DSP) \
+  $(ARTIFACT_OBJ_SHARED) \
+  $(call fcheck,ui,$(FEATURES),$(ARTIFACT_OBJ_UI))
 
 CXX_SRC_STUB            = $(ARTIFACT_BIN)/stub.cpp
 CXX_SRC_MAIN_META       = $(call rwildcard, main/meta, *.cpp)