diff --git a/cmake/modules/FindOpenVDB.cmake b/cmake/modules/FindOpenVDB.cmake
index 70bbe05f5..3400fa786 100644
--- a/cmake/modules/FindOpenVDB.cmake
+++ b/cmake/modules/FindOpenVDB.cmake
@@ -158,7 +158,7 @@ set(_OPENVDB_ROOT_SEARCH_DIR "")
 
 # Additionally try and use pkconfig to find OpenVDB
 
-find_package(PkgConfig ${_quiet} ${_required})
+find_package(PkgConfig ${_quiet} )
 pkg_check_modules(PC_OpenVDB QUIET OpenVDB)
 
 # ------------------------------------------------------------------------