diff --git a/Source/cmFileAPIToolchains.cxx b/Source/cmFileAPIToolchains.cxx
index 498bf359ca..1e6ecfdfad 100644
--- a/Source/cmFileAPIToolchains.cxx
+++ b/Source/cmFileAPIToolchains.cxx
@@ -66,6 +66,9 @@ Json::Value Toolchains::DumpToolchains()
 
   for (std::string const& lang :
        this->FileAPI.GetCMakeInstance()->GetState()->GetEnabledLanguages()) {
+    if (lang == "NONE") {
+      continue;
+    }
     toolchains.append(this->DumpToolchain(lang));
   }
 
diff --git a/Tests/RunCMake/FileAPI/toolchains-v1-check.py b/Tests/RunCMake/FileAPI/toolchains-v1-check.py
index 11a723d7ba..619188c3a8 100644
--- a/Tests/RunCMake/FileAPI/toolchains-v1-check.py
+++ b/Tests/RunCMake/FileAPI/toolchains-v1-check.py
@@ -48,14 +48,18 @@ def check_object_toolchains(o):
 
     # Other platform-specific toolchains may exist (like RC on Windows).
     has_cxx_toolchain = False
+    has_none_toolchain = False
     for toolchain in toolchains:
         assert is_dict(toolchain)
         assert "language" in toolchain
         if toolchain["language"] == "CXX":
             check_object_toolchain(toolchain, EXPECTED_TOOLCHAIN)
             has_cxx_toolchain = True
+        if toolchain["language"] == "NONE":
+            has_none_toolchain = True
 
     assert has_cxx_toolchain
+    assert not has_none_toolchain
 
 def check_object_toolchain(o, expected):
     expected_keys = [