diff --git a/CMakeLists.txt b/CMakeLists.txt
index ad74900..42d55af 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -73,7 +73,7 @@ target_sources( date INTERFACE
     $<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include/date/iso_week.h>
     $<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include/date/julian.h>
 )
-if (CMAKE_VERSION VERSION_GREATER_EQUAL 3.15)
+if (0)
     # public headers will get installed:
     set_target_properties( date PROPERTIES PUBLIC_HEADER include/date/date.h )
 endif ()
@@ -144,7 +144,6 @@ if( BUILD_TZ_LIB )
     endif( )
     set_target_properties( date-tz PROPERTIES
         POSITION_INDEPENDENT_CODE ON
-        PUBLIC_HEADER "${TZ_HEADERS}"
         VERSION "${PROJECT_VERSION}"
         SOVERSION "${ABI_VERSION}" )
     if( NOT MSVC )
@@ -169,8 +169,8 @@ write_basic_package_version_file( "${version_config}"
     COMPATIBILITY SameMajorVersion )
 
 install( TARGETS date
-    EXPORT dateConfig
-    PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/date )
+    EXPORT dateConfig )
+install( FILES include/date/date.h ${TZ_HEADERS} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/date )
 export( TARGETS date NAMESPACE date:: FILE dateTargets.cmake )
 if (CMAKE_VERSION VERSION_LESS 3.15)
     install(