diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3409264bd6..c67d187e12 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -520,7 +520,7 @@ option(BUILD_LIBCURL_DOCS "Build libcurl man pages" ON)
 option(BUILD_MISC_DOCS "Build misc man pages (e.g. curl-config and mk-ca-bundle)" ON)
 option(ENABLE_CURL_MANUAL "Build the man page for curl and enable its -M/--manual option" ON)
 
-if((ENABLE_CURL_MANUAL OR BUILD_LIBCURL_DOCS) AND NOT PERL_FOUND)
+if((ENABLE_CURL_MANUAL OR BUILD_LIBCURL_DOCS) AND NOT Perl_FOUND)
   message(WARNING "Perl not found. Will not build manuals.")
 endif()
 
@@ -1864,13 +1864,13 @@ set(_project_config "${_generated_dir}/${PROJECT_NAME}Config.cmake")
 set(_version_config "${_generated_dir}/${PROJECT_NAME}ConfigVersion.cmake")
 
 option(BUILD_TESTING "Build tests" ON)
-if(BUILD_TESTING AND PERL_FOUND)
+if(BUILD_TESTING AND Perl_FOUND)
   set(CURL_BUILD_TESTING ON)
 else()
   set(CURL_BUILD_TESTING OFF)
 endif()
 
-if(PERL_FOUND)
+if(Perl_FOUND)
   set(CURL_MANPAGE "${PROJECT_BINARY_DIR}/docs/cmdline-opts/curl.1")
   set(CURL_ASCIIPAGE "${PROJECT_BINARY_DIR}/docs/cmdline-opts/curl.txt")
   add_subdirectory(docs)
diff --git a/scripts/CMakeLists.txt b/scripts/CMakeLists.txt
index dd590c910f..54bb814267 100644
--- a/scripts/CMakeLists.txt
+++ b/scripts/CMakeLists.txt
@@ -27,7 +27,7 @@ option(CURL_COMPLETION_ZSH "Install zsh completions" OFF)
 
 if(CURL_COMPLETION_FISH OR
    CURL_COMPLETION_ZSH)
-  if(PERL_FOUND)
+  if(Perl_FOUND)
     if(CURL_COMPLETION_FISH)
       set(_completion_fish "${CMAKE_CURRENT_BINARY_DIR}/curl.fish")
       add_custom_command(OUTPUT "${_completion_fish}"
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 7d28434bd3..6d3d6e3d48 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -28,8 +28,8 @@ set(_curl_cfiles_gen "")
 set(_curl_hfiles_gen "")
 set(_curl_definitions "")
 
-if(ENABLE_CURL_MANUAL AND (PERL_FOUND OR EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/tool_hugehelp.c"))
-  if(PERL_FOUND)
+if(ENABLE_CURL_MANUAL AND (Perl_FOUND OR EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/tool_hugehelp.c"))
+  if(Perl_FOUND)
     add_custom_command(OUTPUT "tool_hugehelp.c"
       COMMAND ${CMAKE_COMMAND} -E echo "#include \"tool_setup.h\"" > "tool_hugehelp.c"
       COMMAND ${CMAKE_COMMAND} -E echo "/* !checksrc! disable COPYRIGHT all */" >> "tool_hugehelp.c"
@@ -55,7 +55,7 @@ if(ENABLE_CURL_MANUAL AND (PERL_FOUND OR EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/too
 endif()
 
 if(CURL_CA_EMBED_SET)
-  if(PERL_FOUND)
+  if(Perl_FOUND)
     add_custom_command(OUTPUT "tool_ca_embed.c"
       COMMAND "${PERL_EXECUTABLE}" "${CMAKE_CURRENT_SOURCE_DIR}/mk-file-embed.pl" --var curl_ca_embed
         < "${CURL_CA_EMBED}" > "tool_ca_embed.c"