diff --git a/cmake/FindSpatialindex.cmake b/cmake/FindSpatialindex.cmake
index 0ee627a9d54..7a564649497 100644
--- a/cmake/FindSpatialindex.cmake
+++ b/cmake/FindSpatialindex.cmake
@@ -20,7 +20,7 @@ FIND_PATH(SPATIALINDEX_INCLUDE_DIR NAMES SpatialIndex.h PATHS
   PATH_SUFFIXES spatialindex
   )
 
-FIND_LIBRARY(SPATIALINDEX_LIBRARY NAMES spatialindex_i spatialindex PATHS
+FIND_LIBRARY(SPATIALINDEX_LIBRARY NAMES spatialindex_i spatialindex spatialindex-64 PATHS
   /usr/lib
   /usr/local/lib
   "$ENV{LIB_DIR}/lib"