diff --git a/core/CMakeLists.txt b/core/CMakeLists.txt
index 6d938ae0c..c8b487dfd 100644
--- a/core/CMakeLists.txt
+++ b/core/CMakeLists.txt
@@ -153,6 +153,14 @@ macro(define X)
     endif(DEFINED ${X})
 endmacro()
 
+# Variant of define() above that adds quotation marks around the variable X.
+macro(defineString X)
+    if(DEFINED ${X})
+        message(STATUS ${X}=\"${${X}}\")
+        target_compile_definitions(reactor-c PUBLIC ${X}=\"${${X}}\")
+    endif(DEFINED ${X})
+endmacro()
+
 # Search and apply all possible compile definitions
 message(STATUS "Applying preprocessor definitions...")
 define(_LF_CLOCK_SYNC_ATTENUATION)
@@ -178,9 +186,9 @@ define(NUMBER_OF_WORKERS)
 define(NUMBER_OF_WATCHDOGS)
 define(USER_THREADS)
 define(SCHEDULER)
-define(LF_SOURCE_DIRECTORY)
-define(LF_SOURCE_GEN_DIRECTORY)
-define(LF_PACKAGE_DIRECTORY)
 define(LF_FILE_SEPARATOR)
 define(WORKERS_NEEDED_FOR_FEDERATE)
 define(LF_ENCLAVES)
+defineString(LF_SOURCE_DIRECTORY)
+defineString(LF_SOURCE_GEN_DIRECTORY)
+defineString(LF_PACKAGE_DIRECTORY)
diff --git a/lingua-franca-ref.txt b/lingua-franca-ref.txt
index 8b25206ff..cf1c8ed75 100644
--- a/lingua-franca-ref.txt
+++ b/lingua-franca-ref.txt
@@ -1 +1 @@
-master
\ No newline at end of file
+cmake-init-include
\ No newline at end of file