diff --git a/lib/jxl.cmake b/lib/jxl.cmake
index a8a96e1..a42b6f0 100644
--- a/lib/jxl.cmake
+++ b/lib/jxl.cmake
@@ -556,8 +556,13 @@ if (NOT WIN32 OR MINGW)
   set_target_properties(jxl-static PROPERTIES OUTPUT_NAME "jxl")
   set_target_properties(jxl_dec-static PROPERTIES OUTPUT_NAME "jxl_dec")
 endif()
+if(BUILD_SHARED_LIBS)
+  set_target_properties(jxl-static PROPERTIES EXCLUDE_FROM_ALL 1)
+  set_target_properties(jxl_dec-static PROPERTIES EXCLUDE_FROM_ALL 1)
+else()
 install(TARGETS jxl-static DESTINATION ${CMAKE_INSTALL_LIBDIR})
 install(TARGETS jxl_dec-static DESTINATION ${CMAKE_INSTALL_LIBDIR})
+endif()
 
 if (BUILD_SHARED_LIBS)
 
diff --git a/lib/jxl_threads.cmake b/lib/jxl_threads.cmake
index 006e71e..b8ce66b 100644
--- a/lib/jxl_threads.cmake
+++ b/lib/jxl_threads.cmake
@@ -43,10 +43,14 @@ set_target_properties(${_target} PROPERTIES
 if (NOT WIN32 OR MINGW)
   set_target_properties(${_target} PROPERTIES OUTPUT_NAME "jxl_threads")
 endif()
+if(BUILD_SHARED_LIBS AND _target MATCHES "-static")
+  set_target_properties(${_target} PROPERTIES EXCLUDE_FROM_ALL 1)
+else()
 install(TARGETS ${_target}
   RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
   LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
   ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
+endif()
 
 endfunction()