diff --git a/lib/manager/nuget/extract.ts b/lib/manager/nuget/extract.ts
index a5e6ab86a7f2d2..b110aa8346bf60 100644
--- a/lib/manager/nuget/extract.ts
+++ b/lib/manager/nuget/extract.ts
@@ -78,7 +78,7 @@ export async function extractPackageFile(
     ? registries.map((registry) => registry.url)
     : undefined;
 
-  if (packageFile.endsWith('.config/dotnet-tools.json')) {
+  if (packageFile.endsWith('dotnet-tools.json')) {
     const deps: PackageDependency[] = [];
     let manifest: DotnetToolsManifest;
 
diff --git a/lib/manager/nuget/index.ts b/lib/manager/nuget/index.ts
index c5e1689cc7304f..35f875646841c3 100644
--- a/lib/manager/nuget/index.ts
+++ b/lib/manager/nuget/index.ts
@@ -9,7 +9,7 @@ export const defaultConfig = {
   fileMatch: [
     '\\.(?:cs|fs|vb)proj$',
     '\\.(?:props|targets)$',
-    '\\.config\\/dotnet-tools\\.json$',
-    '(^|//)global\\.json$',
+    '(^|\\/)dotnet-tools\\.json$',
+    '(^|\\/)global\\.json$',
   ],
 };
diff --git a/lib/manager/nuget/readme.md b/lib/manager/nuget/readme.md
index d8d14edd29bc8c..9ee0df70d66bb3 100644
--- a/lib/manager/nuget/readme.md
+++ b/lib/manager/nuget/readme.md
@@ -2,4 +2,4 @@ The `nuget` configuration object is used to control settings for the NuGet packa
 The NuGet package manager supports a SDK-style `.csproj`/`.fsproj`/`.vbproj`/`.props`/`.targets` format, as described [here](https://natemcmaster.com/blog/2017/03/09/vs2015-to-vs2017-upgrade/).
 This means that .NET Core projects are all supported but any .NET Framework projects need to be updated to the new `.csproj`/`.fsproj`/`.vbproj`/`.props`/`.targets` format in order to be detected and supported by Renovate.
 
-The NuGet manager also supports `global.json` and `.config/dotnet-tools.json` SDK files.
+The NuGet manager also supports `global.json` and `dotnet-tools.json` SDK files.