diff --git a/src/luaconsole.c b/src/luaconsole.c
index 5eba5e2a2..e1d08e38b 100644
--- a/src/luaconsole.c
+++ b/src/luaconsole.c
@@ -1044,7 +1044,7 @@ int luatpt_cmode_set(lua_State* l)
 int luatpt_setfire(lua_State* l)
 {
 	int firesize = luaL_optint(l, 2, 4);
-	float fireintensity = (float)luaL_optnumber(l, 1, 1.0d);
+	float fireintensity = (float)luaL_optnumber(l, 1, 1.0f);
 	prepare_alpha(firesize, fireintensity);
 	return 0;
 }