diff --git a/cmake/StlabUtil.cmake b/cmake/StlabUtil.cmake
index 3b6d21e..e8d81d7 100644
--- a/cmake/StlabUtil.cmake
+++ b/cmake/StlabUtil.cmake
@@ -2,7 +2,7 @@
 # functionality useful for stlab builds.
 
 include( CheckCXXSymbolExists )
-include( CheckCXXSourceRuns )
+include( CheckCXXSourceCompiles )
 
 # Determine if the selected C++ compiler has functional versions of
 # 'std::variant' and 'std::optional'. Set the specified 'result_var' to 'TRUE'
@@ -10,7 +10,7 @@ include( CheckCXXSourceRuns )
 # this check consists of a smoke test and does not check all the ways these
 # library components may be deficient.
 function( stlab_check_disfunctional_variant_optional result_var )
-  check_cxx_source_runs( "
+  check_cxx_source_compiles( "
     #include <variant>
     #include <optional>
 
@@ -33,7 +33,7 @@ endfunction()
 # and 'FALSE' otherwise. Note that this check consists of a smoke test and does
 # not check all the ways this feature may be deficient.
 function( stlab_check_disfunctional_coroutines result_var )
-  check_cxx_source_runs( "
+  check_cxx_source_compiles( "
 #include <concepts>
 #include <coroutine>
 #include <exception>