diff --git a/cmake/FindMercury.cmake b/cmake/FindMercury.cmake
index 7ede231f7f6f3338042a6f48f34a4abb956c41a9..1d536ff695e678ad01b39b0bb6c5779bc2177870 100644
--- a/cmake/FindMercury.cmake
+++ b/cmake/FindMercury.cmake
@@ -115,6 +115,11 @@ macro(_mercury_find_component _component_name)
     PATHS ${PC_MERCURY_LIBRARY_DIRS}
   )
 
+  if(NOT ${_upper_component}_LIBRARY_RELEASE AND
+     NOT ${_upper_component}_LIBRARY_DEBUG)
+    return()
+  endif ()
+
   # initialize ${_upper_component}_LIBRARY (e.g. NA_LIBRARY)
   # with the appropriate library for this build configuration
   select_library_configurations(${_upper_component})