diff --git a/stepmania/src/Difficulty.cpp b/stepmania/src/Difficulty.cpp
index 991de43d55..77eb10cb83 100644
--- a/stepmania/src/Difficulty.cpp
+++ b/stepmania/src/Difficulty.cpp
@@ -16,6 +16,8 @@ static const CString DifficultyNames[NUM_DIFFICULTIES] = {
 XToString( Difficulty, NUM_DIFFICULTIES );
 XToThemedString( Difficulty, NUM_DIFFICULTIES );
 
+LuaFunction_Int( DifficultyToThemedString, DifficultyToThemedString((Difficulty)a1) );
+
 /* We prefer the above names; recognize a number of others, too.  (They'l
  * get normalized when written to SMs, etc.) */
 Difficulty StringToDifficulty( const CString& sDC )
@@ -70,6 +72,8 @@ XToString( CourseDifficulty, NUM_DIFFICULTIES );
 XToThemedString( CourseDifficulty, NUM_DIFFICULTIES );
 StringToX( CourseDifficulty );
 
+LuaFunction_Int( CourseDifficultyToThemedString, CourseDifficultyToThemedString((CourseDifficulty)a1) );
+
 CourseDifficulty GetNextShownCourseDifficulty( CourseDifficulty cd )
 {
 	for( CourseDifficulty d=(CourseDifficulty)(cd+1); d<NUM_DIFFICULTIES; ((int&)d)++ )