diff --git a/CMake/Utilities.cmake b/CMake/Utilities.cmake
index 8425bbd78..5cb1d4497 100644
--- a/CMake/Utilities.cmake
+++ b/CMake/Utilities.cmake
@@ -1,14 +1,13 @@
 # File containing various utilities
 
 # Returns a list of arguments that evaluate to true
-function(collect_true output_var output_count_var)
-  set(${output_var})
+function(count_true output_count_var)
+  set(lst)
   foreach(option_var IN LISTS ARGN)
     if(${option_var})
-      list(APPEND ${output_var} ${option_var})
+      list(APPEND lst ${option_var})
     endif()
   endforeach()
-  set(${output_var} ${${output_var}} PARENT_SCOPE)
-  list(LENGTH ${output_var} ${output_count_var})
-  set(${output_count_var} ${${output_count_var}} PARENT_SCOPE)
+  list(LENGTH lst lst_len)
+  set(${output_count_var} ${lst_len} PARENT_SCOPE)
 endfunction()
diff --git a/CMakeLists.txt b/CMakeLists.txt
index faa9bddd9..cb6db9333 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -309,13 +309,13 @@ if(WIN32 OR CMAKE_USE_DARWINSSL OR CMAKE_USE_WINSSL OR CMAKE_USE_MBEDTLS)
 endif()
 option(CMAKE_USE_OPENSSL "Use OpenSSL code. Experimental" ${openssl_default})
 
-collect_true(enabled_ssl_options enabled_ssl_options_count
+count_true(enabled_ssl_options_count
   CMAKE_USE_WINSSL
   CMAKE_USE_DARWINSSL
   CMAKE_USE_OPENSSL
   CMAKE_USE_MBEDTLS
 )
-if(enabled_ssl_options_count GREATER 1)
+if(enabled_ssl_options_count GREATER "1")
   set(CURL_WITH_MULTI_SSL ON)
 endif()