diff --git a/src/test/modules/test_misc/t/005_timeouts.pl b/src/test/modules/test_misc/t/005_timeouts.pl
index 9e1ff9e5c1c..53e44016e3a 100644
--- a/src/test/modules/test_misc/t/005_timeouts.pl
+++ b/src/test/modules/test_misc/t/005_timeouts.pl
@@ -24,6 +24,18 @@ if ($ENV{enable_injection_points} ne 'yes')
 my $node = PostgreSQL::Test::Cluster->new('master');
 $node->init();
 $node->start;
+
+# Check if the extension injection_points is available, as it may be
+# possible that this script is run with installcheck, where the module
+# would not be installed by default.
+my $result = $node->safe_psql('postgres',
+	"SELECT count(*) > 0 FROM pg_available_extensions WHERE name = 'injection_points';"
+);
+if ($result eq 'f')
+{
+	plan skip_all => 'Extension injection_points not installed';
+}
+
 $node->safe_psql('postgres', 'CREATE EXTENSION injection_points;');
 
 #
diff --git a/src/test/recovery/t/041_checkpoint_at_promote.pl b/src/test/recovery/t/041_checkpoint_at_promote.pl
index 5aa05b456ca..905662353da 100644
--- a/src/test/recovery/t/041_checkpoint_at_promote.pl
+++ b/src/test/recovery/t/041_checkpoint_at_promote.pl
@@ -35,6 +35,17 @@ restart_after_crash = on
 ]);
 $node_primary->start;
 
+# Check if the extension injection_points is available, as it may be
+# possible that this script is run with installcheck, where the module
+# would not be installed by default.
+my $result = $node_primary->safe_psql('postgres',
+	"SELECT count(*) > 0 FROM pg_available_extensions WHERE name = 'injection_points';"
+);
+if ($result eq 'f')
+{
+	plan skip_all => 'Extension injection_points not installed';
+}
+
 my $backup_name = 'my_backup';
 $node_primary->backup($backup_name);