diff --git a/contrib/pg_tde/Makefile b/contrib/pg_tde/Makefile
index bd6ac75a2d6..f371e565537 100644
--- a/contrib/pg_tde/Makefile
+++ b/contrib/pg_tde/Makefile
@@ -6,6 +6,8 @@ EXTENSION = pg_tde
 DATA = pg_tde--1.0-rc.sql
 
 REGRESS_OPTS = --temp-config $(top_srcdir)/contrib/pg_tde/pg_tde.conf
+# toast_descrypt needs to be the first test when running with pg_tde
+# preinstalled and default_principal_key needs to run after key_provider.
 REGRESS = toast_decrypt \
 access_control \
 alter_index \
diff --git a/contrib/pg_tde/meson.build b/contrib/pg_tde/meson.build
index 16df5c7a009..84c28af2667 100644
--- a/contrib/pg_tde/meson.build
+++ b/contrib/pg_tde/meson.build
@@ -71,6 +71,8 @@ install_data(
   kwargs: contrib_data_args,
 )
 
+# toast_descrypt needs to be the first test when running with pg_tde
+# preinstalled and default_principal_key needs to run after key_provider.
 sql_tests = [
       'toast_decrypt',
       'access_control',