diff --git a/Source/cmNinjaUtilityTargetGenerator.cxx b/Source/cmNinjaUtilityTargetGenerator.cxx
index a18ca20d50d844fe9ba8b8bf3cfb3fa7ddcf88ce..92c5b521ba6e59570bcf8a6ee934d3a13823dbba 100644
--- a/Source/cmNinjaUtilityTargetGenerator.cxx
+++ b/Source/cmNinjaUtilityTargetGenerator.cxx
@@ -173,7 +173,7 @@ void cmNinjaUtilityTargetGenerator::WriteUtilBuildStatements(
     std::string ccConfig;
     if (genTarget->Target->IsPerConfig() &&
         genTarget->GetType() != cmStateEnums::GLOBAL_TARGET) {
-      ccConfig = fileConfig;
+      ccConfig = config;
     }
     if (config == fileConfig ||
         gg->GetPerConfigUtilityTargets().count(genTarget->GetName())) {
diff --git a/Tests/RunCMake/NinjaMultiConfig/CustomCommandOutputGenex-target_post_build-debug-ninja-stdout.txt b/Tests/RunCMake/NinjaMultiConfig/CustomCommandOutputGenex-target_post_build-debug-ninja-stdout.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6bf0a49f30d439c700f1f56565ab10cb369118a7
--- /dev/null
+++ b/Tests/RunCMake/NinjaMultiConfig/CustomCommandOutputGenex-target_post_build-debug-ninja-stdout.txt
@@ -0,0 +1,4 @@
+^\[1/2\] target_post_build
+target main build
+\[2/2\] Running utility command for target_post_build
+target post build$
diff --git a/Tests/RunCMake/NinjaMultiConfig/CustomCommandOutputGenex.cmake b/Tests/RunCMake/NinjaMultiConfig/CustomCommandOutputGenex.cmake
index e49cc32fb99f7a1cca15931df0d2eab23cce700b..bb68a509e634ad1fb28c0b690815518641b84dc3 100644
--- a/Tests/RunCMake/NinjaMultiConfig/CustomCommandOutputGenex.cmake
+++ b/Tests/RunCMake/NinjaMultiConfig/CustomCommandOutputGenex.cmake
@@ -189,3 +189,11 @@ add_custom_target(target_no_cross_byproduct
   COMMAND echo $<CONFIG> target_no_cross_byproduct.txt
   WORKING_DIRECTORY $<CONFIG>
   )
+
+add_custom_target(target_post_build
+  COMMENT target_post_build
+  COMMAND ${CMAKE_COMMAND} -E echo "target main build"
+  )
+add_custom_command(TARGET target_post_build POST_BUILD
+  COMMAND ${CMAKE_COMMAND} -E echo "target post build"
+  )
diff --git a/Tests/RunCMake/NinjaMultiConfig/RunCMakeTest.cmake b/Tests/RunCMake/NinjaMultiConfig/RunCMakeTest.cmake
index 23b4aea481b981a05302b39a4982ec82adf1d7d8..aa427391ea93e7e13977fbffd2afd0b5504d4250 100644
--- a/Tests/RunCMake/NinjaMultiConfig/RunCMakeTest.cmake
+++ b/Tests/RunCMake/NinjaMultiConfig/RunCMakeTest.cmake
@@ -364,6 +364,8 @@ run_ninja(CustomCommandOutputGenex target_no_cross_byproduct-debug build-Debug.n
 run_ninja(CustomCommandOutputGenex clean-debug-graph build-Debug.ninja -t clean)
 run_ninja(CustomCommandOutputGenex target_no_cross_byproduct-debug-in-release-graph build-Release.ninja target_no_cross_byproduct:Debug)
 run_ninja(CustomCommandOutputGenex clean-release-graph build-Release.ninja -t clean)
+# target_post_build
+run_ninja(CustomCommandOutputGenex target_post_build-debug build-Debug.ninja target_post_build)
 unset(RunCMake_TEST_NO_CLEAN)
 
 unset(RunCMake_TEST_BINARY_DIR)