diff --git a/src/ThisAssembly.Git/ThisAssembly.Git.targets b/src/ThisAssembly.Git/ThisAssembly.Git.targets
index e34ada87..d268c09f 100644
--- a/src/ThisAssembly.Git/ThisAssembly.Git.targets
+++ b/src/ThisAssembly.Git/ThisAssembly.Git.targets
@@ -55,7 +55,8 @@
 
     <!-- Add SourceRoot as a project property too -->
     <ItemGroup>
-      <_ThisAssemblyGitSourceRoot Include="@(SourceRoot -> WithMetadataValue('SourceControl', 'git'))" />
+      <_ThisAssemblyGitSourceRoot Include="@(SourceRoot -> WithMetadataValue('SourceControl', 'git'))"
+                                  Exclude="@(SourceRoot -> HasMetadata('NestedRoot'))" />
     </ItemGroup>
 
     <PropertyGroup>