diff --git a/src/deh_lua.c b/src/deh_lua.c
index 9679780d7..8552360e0 100644
--- a/src/deh_lua.c
+++ b/src/deh_lua.c
@@ -600,7 +600,7 @@ static int ScanConstants(lua_State *L, boolean mathlib, const char *word)
 	return 0;
 }
 
-static inline int getEnum(lua_State *L, boolean mathlib, const char *word)
+FUNCINLINE static ATTRINLINE int getEnum(lua_State *L, boolean mathlib, const char *word)
 {
 	fixed_t i;