diff --git a/Tests/CMakeTests/FileTest.cmake.in b/Tests/CMakeTests/FileTest.cmake.in
index 700f40bab..960d3c172 100644
--- a/Tests/CMakeTests/FileTest.cmake.in
+++ b/Tests/CMakeTests/FileTest.cmake.in
@@ -60,6 +60,11 @@ check_cmake_test(File
   SHA512-Works
   )
 
+file(GLOB hum)
+if (NOT hum STREQUAL "")
+  message(FATAL_ERROR "file(GLOB hum) did not return an empty string.")
+endif()
+
 # Also execute each test listed in FileTestScript.cmake:
 #
 set(scriptname "@CMAKE_CURRENT_SOURCE_DIR@/FileTestScript.cmake")