diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index 340a97e952a..f33ad39e941 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -66,7 +66,7 @@ jobs:
       run: |
         mkdir -p Build
         cd Build
-        cmake .. -GNinja -DBUILD_LAGOM=1 -DENABLE_ALL_THE_DEBUG_MACROS=ON
+        cmake .. -GNinja -DBUILD_LAGOM=ON -DENABLE_ALL_THE_DEBUG_MACROS=ON
 
     # === ACTUALLY BUILD AND TEST ===
 
@@ -173,7 +173,7 @@ jobs:
       run: |
         mkdir -p Build
         cd Build
-        cmake .. -GNinja -DBUILD_LAGOM=1 -DENABLE_ALL_THE_DEBUG_MACROS=ON -DCMAKE_C_COMPILER=gcc-10 -DCMAKE_CXX_COMPILER=g++-10
+        cmake .. -GNinja -DBUILD_LAGOM=ON -DENABLE_ALL_THE_DEBUG_MACROS=ON -DCMAKE_C_COMPILER=gcc-10 -DCMAKE_CXX_COMPILER=g++-10
 
     # === ACTUALLY BUILD AND TEST ===
 
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 883cd6087c0..d37e760f5f6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -22,6 +22,7 @@ option(ENABLE_MEMORY_SANITIZER "Enable memory sanitizer testing in gcc/clang" FA
 option(ENABLE_UNDEFINED_SANITIZER "Enable undefined behavior sanitizer testing in gcc/clang" FALSE)
 option(ENABLE_FUZZER_SANITIZER "Enable fuzzer sanitizer testing in clang" FALSE)
 option(ENABLE_ALL_THE_DEBUG_MACROS "Enable all debug macros to validate they still compile" FALSE)
+option(BUILD_LAGOM "Build parts of the system targeting the host OS for fuzzing/testing" FALSE)
 
 add_custom_target(run
     COMMAND ${CMAKE_SOURCE_DIR}/Meta/run.sh