diff --git a/Source/cmNinjaNormalTargetGenerator.cxx b/Source/cmNinjaNormalTargetGenerator.cxx
index 685944582..2bad32c5d 100644
--- a/Source/cmNinjaNormalTargetGenerator.cxx
+++ b/Source/cmNinjaNormalTargetGenerator.cxx
@@ -141,7 +141,10 @@ cmNinjaNormalTargetGenerator
     vars.CMTarget = this->GetTarget();
     vars.Language = this->TargetLinkLanguage;
     vars.Objects = "$in";
-    std::string objdir = cmake::GetCMakeFilesDirectoryPostSlash();
+    std::string objdir =
+      this->GetLocalGenerator()->GetHomeRelativeOutputPath();
+    objdir += objdir.empty() ? "" : "/";
+    objdir += cmake::GetCMakeFilesDirectoryPostSlash();
     objdir += this->GetTargetName();
     objdir += ".dir";
     objdir = this->GetLocalGenerator()->Convert(objdir.c_str(),