diff --git a/eng/slngen.targets b/eng/slngen.targets
index 5f21150497c949..0747113bd3f5fd 100644
--- a/eng/slngen.targets
+++ b/eng/slngen.targets
@@ -1,5 +1,6 @@
 <Project>
   <PropertyGroup>
+    <SlnGenSolutionFolder Condition="'$(IsGeneratorProject)' == 'true'">gen</SlnGenSolutionFolder>
     <SlnGenSolutionFolder Condition="'$(IsReferenceAssembly)' == 'true'">ref</SlnGenSolutionFolder>
     <SlnGenSolutionFolder Condition="'$(IsTestProject)' == 'true' or '$(IsTestSupportProject)' == 'true'">tests</SlnGenSolutionFolder>
     <SlnGenSolutionFolder Condition="'$(SlnGenSolutionFolder)' == ''">src</SlnGenSolutionFolder>