diff --git a/Source/cmFastbuildNormalTargetGenerator.cxx b/Source/cmFastbuildNormalTargetGenerator.cxx
index efeabaeb60..fab5d931a2 100644
--- a/Source/cmFastbuildNormalTargetGenerator.cxx
+++ b/Source/cmFastbuildNormalTargetGenerator.cxx
@@ -523,6 +523,12 @@ void cmFastbuildNormalTargetGenerator::EnsureDirectoryExists(
   }
 }
 
+void cmFastbuildNormalTargetGenerator::EnsureParentDirectoryExists(
+  std::string const& path) const
+{
+  this->EnsureDirectoryExists(cmSystemTools::GetParentDirectory(path));
+}
+
 std::vector<std::string>
 cmFastbuildNormalTargetGenerator::GetManifestsAsFastbuildPath() const
 {
diff --git a/Source/cmFastbuildNormalTargetGenerator.h b/Source/cmFastbuildNormalTargetGenerator.h
index 5512b19a41..8a01f776cd 100644
--- a/Source/cmFastbuildNormalTargetGenerator.h
+++ b/Source/cmFastbuildNormalTargetGenerator.h
@@ -157,4 +157,5 @@ private:
   std::vector<std::string> GetManifestsAsFastbuildPath() const;
 
   void EnsureDirectoryExists(std::string const& path) const;
+  void EnsureParentDirectoryExists(std::string const& path) const;
 };