diff --git a/hooks.c b/hooks.c
index ec89b22e..0cf72e74 100644
--- a/hooks.c
+++ b/hooks.c
@@ -27,6 +27,7 @@ int
 notmuch_run_hook (notmuch_database_t *notmuch, const char *hook)
 {
     char *hook_path;
+    const char *config_path;
     int status = 0;
     pid_t pid;
 
@@ -38,6 +39,12 @@ notmuch_run_hook (notmuch_database_t *notmuch, const char *hook)
 	return 1;
     }
 
+    config_path = notmuch_config_path (notmuch);
+    if (setenv ("NOTMUCH_CONFIG", config_path, 1)) {
+	perror ("setenv");
+	return 1;
+    }
+
     /* Check access before fork() for speed and simplicity of error handling. */
     if (access (hook_path, X_OK) == -1) {
 	/* Ignore ENOENT. It's okay not to have a hook, hook dir, or even
diff --git a/test/T400-hooks.sh b/test/T400-hooks.sh
index 9ceefbad..35bf70c0 100755
--- a/test/T400-hooks.sh
+++ b/test/T400-hooks.sh
@@ -215,9 +215,6 @@ EOF
     test_expect_equal_file EXPECTED OUTPUT
 
     test_begin_subtest "NOTMUCH_CONFIG is set"
-    if [ "${config}" = "profile" ]; then
-	test_subtest_known_broken
-    fi
     create_printenv_hook "pre-new" NOTMUCH_CONFIG OUTPUT
     NOTMUCH_NEW
     cat <<EOF > EXPECTED
@@ -226,7 +223,6 @@ EOF
     test_expect_equal_file_nonempty EXPECTED OUTPUT
 
     test_begin_subtest "NOTMUCH_CONFIG is set by --config"
-    test_subtest_known_broken
     create_printenv_hook "pre-new" NOTMUCH_CONFIG OUTPUT
     cp "${EXPECTED_CONFIG}" "${EXPECTED_CONFIG}.alternate"
     notmuch --config "${EXPECTED_CONFIG}.alternate" new