diff --git a/Analysis/src/Frontend.cpp b/Analysis/src/Frontend.cpp
index 722f1a2c..1bc8a905 100644
--- a/Analysis/src/Frontend.cpp
+++ b/Analysis/src/Frontend.cpp
@@ -32,6 +32,7 @@ LUAU_FASTFLAGVARIABLE(LuauKnowsTheDataModel3, false)
 LUAU_FASTINTVARIABLE(LuauAutocompleteCheckTimeoutMs, 100)
 LUAU_FASTFLAGVARIABLE(DebugLuauDeferredConstraintResolution, false)
 LUAU_FASTFLAGVARIABLE(LuauDefinitionFileSourceModule, false)
+LUAU_FASTFLAGVARIABLE(LuauDefinitionFileSetModuleName, true)
 LUAU_FASTFLAGVARIABLE(DebugLuauLogSolverToJson, false);
 
 namespace Luau
@@ -102,6 +103,8 @@ LoadDefinitionFileResult Frontend::loadDefinitionFile(std::string_view source, c
     if (parseResult.errors.size() > 0)
         return LoadDefinitionFileResult{false, parseResult, sourceModule, nullptr};
 
+    if (FFlag::LuauDefinitionFileSetModuleName)
+        sourceModule.name = packageName;
     sourceModule.root = parseResult.root;
     sourceModule.mode = Mode::Definition;
 
@@ -160,6 +163,8 @@ LoadDefinitionFileResult loadDefinitionFile_DEPRECATED(
         return LoadDefinitionFileResult{false, parseResult, {}, nullptr};
 
     Luau::SourceModule module;
+    if (FFlag::LuauDefinitionFileSetModuleName)
+        module.name = packageName;
     module.root = parseResult.root;
     module.mode = Mode::Definition;
 
@@ -220,6 +225,8 @@ LoadDefinitionFileResult loadDefinitionFile(TypeChecker& typeChecker, GlobalType
     if (parseResult.errors.size() > 0)
         return LoadDefinitionFileResult{false, parseResult, sourceModule, nullptr};
 
+    if (FFlag::LuauDefinitionFileSetModuleName)
+        sourceModule.name = packageName;
     sourceModule.root = parseResult.root;
     sourceModule.mode = Mode::Definition;
 
@@ -363,9 +370,11 @@ ErrorVec accumulateErrors(
 
         Module& module = *it2->second;
 
-        std::sort(module.errors.begin(), module.errors.end(), [](const TypeError& e1, const TypeError& e2) -> bool {
-            return e1.location.begin > e2.location.begin;
-        });
+        std::sort(module.errors.begin(), module.errors.end(),
+            [](const TypeError& e1, const TypeError& e2) -> bool
+            {
+                return e1.location.begin > e2.location.begin;
+            });
 
         result.insert(result.end(), module.errors.begin(), module.errors.end());
     }
@@ -609,8 +618,9 @@ CheckResult Frontend::check(const ModuleName& name, std::optional<FrontendOption
 
         const bool recordJsonLog = FFlag::DebugLuauLogSolverToJson && moduleName == name;
 
-        ModulePtr module = FFlag::DebugLuauDeferredConstraintResolution ? check(sourceModule, mode, requireCycles, /*forAutocomplete*/ false, recordJsonLog)
-                                                                        : typeChecker.check(sourceModule, mode, environmentScope);
+        ModulePtr module = FFlag::DebugLuauDeferredConstraintResolution
+                               ? check(sourceModule, mode, requireCycles, /*forAutocomplete*/ false, recordJsonLog)
+                               : typeChecker.check(sourceModule, mode, environmentScope);
 
         stats.timeCheck += getTimestamp() - timestamp;
         stats.filesStrict += mode == Mode::Strict;
@@ -994,7 +1004,8 @@ ModulePtr check(const SourceModule& sourceModule, const std::vector<RequireCycle
     return result;
 }
 
-ModulePtr Frontend::check(const SourceModule& sourceModule, Mode mode, std::vector<RequireCycle> requireCycles, bool forAutocomplete, bool recordJsonLog)
+ModulePtr Frontend::check(
+    const SourceModule& sourceModule, Mode mode, std::vector<RequireCycle> requireCycles, bool forAutocomplete, bool recordJsonLog)
 {
     return Luau::check(sourceModule, requireCycles, builtinTypes, NotNull{&iceHandler},
         NotNull{forAutocomplete ? &moduleResolverForAutocomplete : &moduleResolver}, NotNull{fileResolver},