diff --git a/CMakeLists.txt b/CMakeLists.txt
index ee2e6d0904..3594be790a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -744,7 +744,6 @@ if(ZLIB_FOUND)
   # get our dependencies transitively.
   list(APPEND CURL_LIBS ZLIB::ZLIB)
   list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "zlib")
-  list(APPEND CMAKE_REQUIRED_INCLUDES ${ZLIB_INCLUDE_DIRS})
 endif()
 
 option(CURL_BROTLI "Use brotli" OFF)
@@ -756,7 +755,6 @@ if(CURL_BROTLI)
     list(APPEND CURL_LIBS ${BROTLI_LIBRARIES})
     list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "libbrotlidec")
     include_directories(SYSTEM ${BROTLI_INCLUDE_DIRS})
-    list(APPEND CMAKE_REQUIRED_INCLUDES ${BROTLI_INCLUDE_DIRS})
   endif()
 endif()
 
@@ -1106,7 +1104,6 @@ if(CURL_USE_LIBPSL)
   if(LIBPSL_FOUND)
     list(APPEND CURL_LIBS ${LIBPSL_LIBRARIES})
     list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "libpsl")
-    list(APPEND CMAKE_REQUIRED_INCLUDES "${LIBPSL_INCLUDE_DIRS}")
     include_directories(SYSTEM ${LIBPSL_INCLUDE_DIRS})
     set(USE_LIBPSL ON)
   else()
@@ -1124,7 +1121,6 @@ if(CURL_USE_LIBSSH2)
   if(LIBSSH2_FOUND)
     list(APPEND CURL_LIBS ${LIBSSH2_LIBRARIES})
     list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "libssh2")
-    list(APPEND CMAKE_REQUIRED_INCLUDES "${LIBSSH2_INCLUDE_DIRS}")
     include_directories(SYSTEM ${LIBSSH2_INCLUDE_DIRS})
     set(USE_LIBSSH2 ON)
   endif()
@@ -1157,7 +1153,6 @@ if(NOT USE_LIBSSH2 AND NOT USE_LIBSSH AND CURL_USE_WOLFSSH)
     find_package(WolfSSH)
     if(WOLFSSH_FOUND)
       list(APPEND CURL_LIBS ${WOLFSSH_LIBRARIES})
-      list(APPEND CMAKE_REQUIRED_INCLUDES "${WOLFSSH_INCLUDE_DIRS}")
       include_directories(SYSTEM ${WOLFSSH_INCLUDE_DIRS})
       set(USE_WOLFSSH ON)
     endif()