diff --git a/CMakeLists.txt b/CMakeLists.txt
index 32063af6..cbcdf67d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,7 +7,6 @@ option(BUILD_PYTHON "Build Python Integration" ON)
 option(BUILD_TESTS "Build GUI" OFF)
 
 # List of families to build
-if(DEFINED TRELLIS_ROOT)
 set(FAMILIES generic ice40 ecp5)
 
 set(ARCH "" CACHE STRING "Architecture family for nextpnr build")
diff --git a/gui/ecp5/family.cmake b/gui/ecp5/family.cmake
new file mode 100644
index 00000000..e69de29b