diff --git a/Compiler/src/BuiltinFolding.cpp b/Compiler/src/BuiltinFolding.cpp
index 9182d57e..7aa8eb46 100644
--- a/Compiler/src/BuiltinFolding.cpp
+++ b/Compiler/src/BuiltinFolding.cpp
@@ -5,7 +5,7 @@
 
 #include <math.h>
 
-LUAU_FASTFLAGVARIABLE(LuauVector2Constructor)
+LUAU_FASTFLAGVARIABLE(LuauVector2Constants)
 
 namespace Luau
 {
@@ -475,7 +475,7 @@ Constant foldBuiltin(int bfid, const Constant* args, size_t count)
     case LBF_VECTOR:
         if (count >= 2 && args[0].type == Constant::Type_Number && args[1].type == Constant::Type_Number)
         {
-            if (count == 2 && FFlag::LuauVector2Constructor)
+            if (count == 2 && FFlag::LuauVector2Constants)
                 return cvector(args[0].valueNumber, args[1].valueNumber, 0.0, 0.0);
             else if (count == 3 && args[2].type == Constant::Type_Number)
                 return cvector(args[0].valueNumber, args[1].valueNumber, args[2].valueNumber, 0.0);
diff --git a/VM/src/lveclib.cpp b/VM/src/lveclib.cpp
index 2a4e58c6..ff1fd269 100644
--- a/VM/src/lveclib.cpp
+++ b/VM/src/lveclib.cpp
@@ -7,16 +7,19 @@
 #include <math.h>
 
 LUAU_FASTFLAGVARIABLE(LuauVectorMetatable)
+LUAU_FASTFLAGVARIABLE(LuauVector2Constructor)
 
 static int vector_create(lua_State* L)
 {
+    // checking argument count to avoid accepting 'nil' as a valid value
+    int count = lua_gettop(L);
+
     double x = luaL_checknumber(L, 1);
     double y = luaL_checknumber(L, 2);
-    double z = luaL_checknumber(L, 3);
+    double z = FFlag::LuauVector2Constructor ? (count >= 3 ? luaL_checknumber(L, 3) : 0.0) : luaL_checknumber(L, 3);
 
 #if LUA_VECTOR_SIZE == 4
-    // checking argument count to avoid accepting 'nil' as a valid value
-    double w = lua_gettop(L) >= 4 ? luaL_checknumber(L, 4) : 0.0;
+    double w = count >= 4 ? luaL_checknumber(L, 4) : 0.0;
 
     lua_pushvector(L, float(x), float(y), float(z), float(w));
 #else
diff --git a/tests/Compiler.test.cpp b/tests/Compiler.test.cpp
index 22430f6d..39ed880b 100644
--- a/tests/Compiler.test.cpp
+++ b/tests/Compiler.test.cpp
@@ -28,7 +28,7 @@ LUAU_FASTFLAG(LuauCompileOptimizeRevArith)
 LUAU_FASTFLAG(LuauCompileLibraryConstants)
 LUAU_FASTFLAG(LuauVectorBuiltins)
 LUAU_FASTFLAG(LuauVectorFolding)
-LUAU_FASTFLAG(LuauVector2Constructor)
+LUAU_FASTFLAG(LuauVector2Constants)
 LUAU_FASTFLAG(LuauCompileDisabledBuiltins)
 
 using namespace Luau;
@@ -5106,7 +5106,7 @@ L0: RETURN R3 -1
 TEST_CASE("VectorConstants")
 {
     ScopedFastFlag luauVectorBuiltins{FFlag::LuauVectorBuiltins, true};
-    ScopedFastFlag luauVector2Constructor{FFlag::LuauVector2Constructor, true};
+    ScopedFastFlag luauVector2Constants{FFlag::LuauVector2Constants, true};
 
     CHECK_EQ("\n" + compileFunction("return vector.create(1, 2)", 0, 2, 0, /*enableVectors*/ true), R"(
 LOADK R0 K0 [1, 2, 0]
diff --git a/tests/Conformance.test.cpp b/tests/Conformance.test.cpp
index c0e81371..59201d26 100644
--- a/tests/Conformance.test.cpp
+++ b/tests/Conformance.test.cpp
@@ -41,6 +41,7 @@ LUAU_FASTFLAG(LuauVectorLibNativeCodegen)
 LUAU_FASTFLAG(LuauVectorLibNativeDot)
 LUAU_FASTFLAG(LuauVectorBuiltins)
 LUAU_FASTFLAG(LuauVectorMetatable)
+LUAU_FASTFLAG(LuauVector2Constructor)
 
 static lua_CompileOptions defaultOptions()
 {
@@ -895,6 +896,7 @@ TEST_CASE("VectorLibrary")
     ScopedFastFlag luauVectorLibNativeCodegen{FFlag::LuauVectorLibNativeCodegen, true};
     ScopedFastFlag luauVectorLibNativeDot{FFlag::LuauVectorLibNativeDot, true};
     ScopedFastFlag luauVectorMetatable{FFlag::LuauVectorMetatable, true};
+    ScopedFastFlag luauVector2Constructor{FFlag::LuauVector2Constructor, true};
 
     lua_CompileOptions copts = defaultOptions();
 
diff --git a/tests/conformance/vector_library.lua b/tests/conformance/vector_library.lua
index 3f30d900..7c6a0b8f 100644
--- a/tests/conformance/vector_library.lua
+++ b/tests/conformance/vector_library.lua
@@ -13,6 +13,12 @@ end
 -- make sure we cover both builtin and C impl
 assert(vector.create(1, 2, 4) == vector.create("1", "2", "4"))
 
+-- 'create'
+local v12 = vector.create(1, 2)
+local v123 = vector.create(1, 2, 3)
+assert(v12.x == 1 and v12.y == 2 and v12.z == 0)
+assert(v123.x == 1 and v123.y == 2 and v123.z == 3)
+
 -- testing 'dot' with error handling and different call kinds to mostly check details in the codegen
 assert(vector.dot(vector.create(1, 2, 4), vector.create(5, 6, 7)) == 45)
 assert(ecall(function() vector.dot(vector.create(1, 2, 4)) end) == "missing argument #2 to 'dot' (vector expected)")