diff --git a/CMakeLists.txt b/CMakeLists.txt
index a925a88d51..dac3adee30 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1158,6 +1158,7 @@ ENDIF()
 set(STD_FILTERS "deflate") # Always have deflate*/
 set_std_filter(Szip)
 SET(HAVE_SZ ${Szip_FOUND})
+SET(USE_SZIP ${HAVE_SZ})
 set_std_filter(Blosc)
 IF(Zstd_FOUND)
   set_std_filter(Zstd)