diff --git a/src/lua_baselib.c b/src/lua_baselib.c
index c5f847be6..916fa9254 100644
--- a/src/lua_baselib.c
+++ b/src/lua_baselib.c
@@ -432,7 +432,7 @@ static int lib_pAproxDistance(lua_State *L)
 	fixed_t dx = luaL_checkfixed(L, 1);
 	fixed_t dy = luaL_checkfixed(L, 2);
 	//HUDSAFE
-	lua_pushfixed(L, P_AproxDistance(dx, dy));
+	lua_pushfixed(L, R_PointToDist2(0, 0, dx, dy));
 	return 1;
 }
 
diff --git a/src/lua_mathlib.c b/src/lua_mathlib.c
index 10ba42ee0..b6046ab53 100644
--- a/src/lua_mathlib.c
+++ b/src/lua_mathlib.c
@@ -15,6 +15,7 @@
 #include "tables.h"
 #include "p_local.h"
 #include "doomstat.h" // for ALL7EMERALDS
+#include "r_main.h" // for R_PointToDist2
 
 #include "lua_script.h"
 #include "lua_libs.h"
@@ -129,7 +130,7 @@ static int lib_fixedsqrt(lua_State *L)
 
 static int lib_fixedhypot(lua_State *L)
 {
-	lua_pushfixed(L, FixedHypot(luaL_checkfixed(L, 1), luaL_checkfixed(L, 2)));
+	lua_pushfixed(L, R_PointToDist2(0, 0, luaL_checkfixed(L, 1), luaL_checkfixed(L, 2)));
 	return 1;
 }