diff --git a/src/modules/physics/box2d/wrap_DistanceJoint.cpp b/src/modules/physics/box2d/wrap_DistanceJoint.cpp
index 1885d2d04..242e555b2 100644
--- a/src/modules/physics/box2d/wrap_DistanceJoint.cpp
+++ b/src/modules/physics/box2d/wrap_DistanceJoint.cpp
@@ -50,7 +50,7 @@ int w_DistanceJoint_getLength(lua_State *L)
 	return 1;
 }
 
-int w_DistanceJoint_setStiffness(lua_State *L)
+int w_DistanceJoint_setFrequency(lua_State *L)
 {
 	DistanceJoint *t = luax_checkdistancejoint(L, 1);
 	float arg1 = (float)luaL_checknumber(L, 2);
@@ -58,7 +58,7 @@ int w_DistanceJoint_setStiffness(lua_State *L)
 	return 0;
 }
 
-int w_DistanceJoint_getStiffness(lua_State *L)
+int w_DistanceJoint_getFrequency(lua_State *L)
 {
 	DistanceJoint *t = luax_checkdistancejoint(L, 1);
 	lua_pushnumber(L, t->getStiffness());
@@ -84,8 +84,8 @@ static const luaL_Reg w_DistanceJoint_functions[] =
 {
 	{ "setLength", w_DistanceJoint_setLength },
 	{ "getLength", w_DistanceJoint_getLength },
-	{ "setStiffness", w_DistanceJoint_setStiffness },
-	{ "getStiffness", w_DistanceJoint_getStiffness },
+	{ "setFrequency", w_DistanceJoint_setFrequency },
+	{ "getFrequency", w_DistanceJoint_getFrequency },
 	{ "setDampingRatio", w_DistanceJoint_setDampingRatio },
 	{ "getDampingRatio", w_DistanceJoint_getDampingRatio },
 	{ 0, 0 }
diff --git a/src/modules/physics/box2d/wrap_MouseJoint.cpp b/src/modules/physics/box2d/wrap_MouseJoint.cpp
index 0e9a3b333..f30e7c9f4 100644
--- a/src/modules/physics/box2d/wrap_MouseJoint.cpp
+++ b/src/modules/physics/box2d/wrap_MouseJoint.cpp
@@ -66,7 +66,7 @@ int w_MouseJoint_getMaxForce(lua_State *L)
 	return 1;
 }
 
-int w_MouseJoint_setStiffness(lua_State *L)
+int w_MouseJoint_setFrequency(lua_State *L)
 {
 	MouseJoint *t = luax_checkmousejoint(L, 1);
 	float arg1 = (float)luaL_checknumber(L, 2);
@@ -74,7 +74,7 @@ int w_MouseJoint_setStiffness(lua_State *L)
 	return 0;
 }
 
-int w_MouseJoint_getStiffness(lua_State *L)
+int w_MouseJoint_getFrequency(lua_State *L)
 {
 	MouseJoint *t = luax_checkmousejoint(L, 1);
 	lua_pushnumber(L, t->getStiffness());
@@ -102,8 +102,8 @@ static const luaL_Reg w_MouseJoint_functions[] =
 	{ "getTarget", w_MouseJoint_getTarget },
 	{ "setMaxForce", w_MouseJoint_setMaxForce },
 	{ "getMaxForce", w_MouseJoint_getMaxForce },
-	{ "setStiffness", w_MouseJoint_setStiffness },
-	{ "getStiffness", w_MouseJoint_getStiffness },
+	{ "setFrequency", w_MouseJoint_setFrequency },
+	{ "getFrequency", w_MouseJoint_getFrequency },
 	{ "setDampingRatio", w_MouseJoint_setDampingRatio },
 	{ "getDampingRatio", w_MouseJoint_getDampingRatio },
 	{ 0, 0 }
diff --git a/src/modules/physics/box2d/wrap_WeldJoint.cpp b/src/modules/physics/box2d/wrap_WeldJoint.cpp
index 123e36e37..e1e960159 100644
--- a/src/modules/physics/box2d/wrap_WeldJoint.cpp
+++ b/src/modules/physics/box2d/wrap_WeldJoint.cpp
@@ -35,7 +35,7 @@ WeldJoint *luax_checkweldjoint(lua_State *L, int idx)
 	return j;
 }
 
-int w_WeldJoint_setStiffness(lua_State *L)
+int w_WeldJoint_setFrequency(lua_State *L)
 {
 	WeldJoint *t = luax_checkweldjoint(L, 1);
 	float arg1 = (float)luaL_checknumber(L, 2);
@@ -43,7 +43,7 @@ int w_WeldJoint_setStiffness(lua_State *L)
 	return 0;
 }
 
-int w_WeldJoint_getStiffness(lua_State *L)
+int w_WeldJoint_getFrequency(lua_State *L)
 {
 	WeldJoint *t = luax_checkweldjoint(L, 1);
 	lua_pushnumber(L, t->getStiffness());
@@ -74,8 +74,8 @@ int w_WeldJoint_getReferenceAngle(lua_State *L)
 
 static const luaL_Reg w_WeldJoint_functions[] =
 {
-	{ "setStiffness", w_WeldJoint_setStiffness },
-	{ "getStiffness", w_WeldJoint_getStiffness },
+	{ "setFrequency", w_WeldJoint_setFrequency },
+	{ "getFrequency", w_WeldJoint_getFrequency },
 	{ "setDampingRatio", w_WeldJoint_setDampingRatio },
 	{ "getDampingRatio", w_WeldJoint_getDampingRatio },
 	{ "getReferenceAngle", w_WeldJoint_getReferenceAngle },
diff --git a/src/modules/physics/box2d/wrap_WheelJoint.cpp b/src/modules/physics/box2d/wrap_WheelJoint.cpp
index 1ea4e9549..021fb675a 100644
--- a/src/modules/physics/box2d/wrap_WheelJoint.cpp
+++ b/src/modules/physics/box2d/wrap_WheelJoint.cpp
@@ -102,7 +102,7 @@ int w_WheelJoint_getMotorTorque(lua_State *L)
 	return 1;
 }
 
-int w_WheelJoint_setSpringStiffness(lua_State *L)
+int w_WheelJoint_setSpringFrequency(lua_State *L)
 {
 	WheelJoint *t = luax_checkwheeljoint(L, 1);
 	float arg1 = (float)luaL_checknumber(L, 2);
@@ -110,7 +110,7 @@ int w_WheelJoint_setSpringStiffness(lua_State *L)
 	return 0;
 }
 
-int w_WheelJoint_getSpringStiffness(lua_State *L)
+int w_WheelJoint_getSpringFrequency(lua_State *L)
 {
 	WheelJoint *t = luax_checkwheeljoint(L, 1);
 	lua_pushnumber(L, t->getStiffness());
@@ -150,8 +150,8 @@ static const luaL_Reg w_WheelJoint_functions[] =
 	{ "setMaxMotorTorque", w_WheelJoint_setMaxMotorTorque },
 	{ "getMaxMotorTorque", w_WheelJoint_getMaxMotorTorque },
 	{ "getMotorTorque", w_WheelJoint_getMotorTorque },
-	{ "setSpringStiffness", w_WheelJoint_setSpringStiffness },
-	{ "getSpringStiffness", w_WheelJoint_getSpringStiffness },
+	{ "setSpringFrequency", w_WheelJoint_setSpringFrequency },
+	{ "getSpringFrequency", w_WheelJoint_getSpringFrequency },
 	{ "setSpringDampingRatio", w_WheelJoint_setSpringDampingRatio },
 	{ "getSpringDampingRatio", w_WheelJoint_getSpringDampingRatio },
 	{ "getAxis", w_WheelJoint_getAxis },