diff --git a/Source/cmExportPackageInfoGenerator.cxx b/Source/cmExportPackageInfoGenerator.cxx
index a30b0b030d..23f2b7284d 100644
--- a/Source/cmExportPackageInfoGenerator.cxx
+++ b/Source/cmExportPackageInfoGenerator.cxx
@@ -465,7 +465,7 @@ void cmExportPackageInfoGenerator::GenerateInterfaceCompileFeatures(
   for (auto const& value : cmList{ iter->second }) {
     if (cmHasLiteralPrefix(value, "c_std_")) {
       auto suffix = cm::string_view{ value }.substr(6, 2);
-      features.emplace(cmStrCat("cxx", suffix));
+      features.emplace(cmStrCat("c", suffix));
     } else if (cmHasLiteralPrefix(value, "cxx_std_")) {
       auto suffix = cm::string_view{ value }.substr(8, 2);
       features.emplace(cmStrCat("c++", suffix));
diff --git a/Tests/RunCMake/ExportPackageInfo/InterfaceProperties-check.cmake b/Tests/RunCMake/ExportPackageInfo/InterfaceProperties-check.cmake
index fcec61ffe0..a93b676aa3 100644
--- a/Tests/RunCMake/ExportPackageInfo/InterfaceProperties-check.cmake
+++ b/Tests/RunCMake/ExportPackageInfo/InterfaceProperties-check.cmake
@@ -10,8 +10,9 @@ string(JSON component GET "${content}" "components" "foo")
 expect_value("${component}" "interface" "type")
 expect_array("${component}" 1 "includes")
 expect_value("${component}" "${CMAKE_CURRENT_LIST_DIR}/foo" "includes" 0)
-expect_array("${component}" 1 "compile_features")
+expect_array("${component}" 2 "compile_features")
 expect_value("${component}" "c++23" "compile_features" 0)
+expect_value("${component}" "c17" "compile_features" 1)
 expect_array("${component}" 1 "compile_flags")
 expect_value("${component}" "-ffast-math" "compile_flags" 0)
 expect_null("${component}" "definitions" "*" "FOO")
diff --git a/Tests/RunCMake/ExportPackageInfo/InterfaceProperties.cmake b/Tests/RunCMake/ExportPackageInfo/InterfaceProperties.cmake
index 5e2f966821..038aa96afa 100644
--- a/Tests/RunCMake/ExportPackageInfo/InterfaceProperties.cmake
+++ b/Tests/RunCMake/ExportPackageInfo/InterfaceProperties.cmake
@@ -1,6 +1,6 @@
 add_library(foo INTERFACE)
 
-target_compile_features(foo INTERFACE cxx_std_23)
+target_compile_features(foo INTERFACE c_std_17 cxx_std_23)
 target_compile_options(foo INTERFACE -ffast-math)
 target_compile_definitions(foo INTERFACE -DFOO -DBAR=BAR)
 target_include_directories(
diff --git a/Tests/RunCMake/InstallPackageInfo/InterfaceProperties-check.cmake b/Tests/RunCMake/InstallPackageInfo/InterfaceProperties-check.cmake
index 912ce6ba95..655212f593 100644
--- a/Tests/RunCMake/InstallPackageInfo/InterfaceProperties-check.cmake
+++ b/Tests/RunCMake/InstallPackageInfo/InterfaceProperties-check.cmake
@@ -10,8 +10,9 @@ string(JSON component GET "${content}" "components" "foo")
 expect_value("${component}" "interface" "type")
 expect_array("${component}" 1 "includes")
 expect_value("${component}" "@prefix@/include/foo" "includes" 0)
-expect_array("${component}" 1 "compile_features")
+expect_array("${component}" 2 "compile_features")
 expect_value("${component}" "c++23" "compile_features" 0)
+expect_value("${component}" "c17" "compile_features" 1)
 expect_array("${component}" 1 "compile_flags")
 expect_value("${component}" "-ffast-math" "compile_flags" 0)
 expect_null("${component}" "definitions" "*" "FOO")
diff --git a/Tests/RunCMake/InstallPackageInfo/InterfaceProperties.cmake b/Tests/RunCMake/InstallPackageInfo/InterfaceProperties.cmake
index 58e5046672..240bff11fa 100644
--- a/Tests/RunCMake/InstallPackageInfo/InterfaceProperties.cmake
+++ b/Tests/RunCMake/InstallPackageInfo/InterfaceProperties.cmake
@@ -1,6 +1,6 @@
 add_library(foo INTERFACE)
 
-target_compile_features(foo INTERFACE cxx_std_23)
+target_compile_features(foo INTERFACE c_std_17 cxx_std_23)
 target_compile_options(foo INTERFACE -ffast-math)
 target_compile_definitions(foo INTERFACE -DFOO -DBAR=BAR)
 target_include_directories(