diff --git a/Sharpmake.Generators/FastBuild/Bff.Util.cs b/Sharpmake.Generators/FastBuild/Bff.Util.cs
index a02173241..c6caa8c85 100644
--- a/Sharpmake.Generators/FastBuild/Bff.Util.cs
+++ b/Sharpmake.Generators/FastBuild/Bff.Util.cs
@@ -879,6 +879,7 @@ internal static void WriteConfigCustomBuildStepsAsGenericExecutable(string proje
         {
             using (bffGenerator.Resolver.NewScopedParameter("project", project))
             using (bffGenerator.Resolver.NewScopedParameter("config", config))
+            using (bffGenerator.Resolver.NewScopedParameter("conf", config))
             using (bffGenerator.Resolver.NewScopedParameter("target", config.Target))
             {
                 foreach (var customBuildStep in config.CustomFileBuildSteps)
diff --git a/Sharpmake.Generators/VisualStudio/Vcxproj.cs b/Sharpmake.Generators/VisualStudio/Vcxproj.cs
index 39d239afa..3b40df274 100644
--- a/Sharpmake.Generators/VisualStudio/Vcxproj.cs
+++ b/Sharpmake.Generators/VisualStudio/Vcxproj.cs
@@ -1391,6 +1391,7 @@ IList<string> skipFiles
                 {
                     using (fileGenerator.Resolver.NewScopedParameter("project", context.Project))
                     using (fileGenerator.Resolver.NewScopedParameter("config", config))
+                    using (fileGenerator.Resolver.NewScopedParameter("conf", config))
                     using (fileGenerator.Resolver.NewScopedParameter("target", config.Target))
                     {
                         var customFileBuildSteps = CombineCustomFileBuildSteps(context.ProjectDirectory, fileGenerator.Resolver, config.CustomFileBuildSteps.Where(step => step.Filter != Project.Configuration.CustomFileBuildStep.ProjectFilter.BFFOnly));