diff --git a/src/json_query.c b/src/json_query.c
index 39b055e4..d3e2300b 100644
--- a/src/json_query.c
+++ b/src/json_query.c
@@ -48,7 +48,7 @@ void log_json_error(log_level level, json_error_t *error) {
 }
 
 const char *ensure_valid_operator(const char *oper, baton_error_t *error) {
-    static size_t num_operators = 10;
+    static size_t num_operators = 12;
     static char *operators[] = { SEARCH_OP_EQUALS,   SEARCH_OP_LIKE,
                                  SEARCH_OP_NOT_LIKE, SEARCH_OP_IN,
                                  SEARCH_OP_STR_GT,   SEARCH_OP_STR_LT,
@@ -70,7 +70,7 @@ const char *ensure_valid_operator(const char *oper, baton_error_t *error) {
     if (!valid) {
         set_baton_error(error, CAT_INVALID_ARGUMENT,
                         "Invalid operator: expected one of "
-                        "[%s, %s, %s, %s, %s, %s, %s, %s, %s, %s]",
+                        "[%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s]",
                         SEARCH_OP_EQUALS,   SEARCH_OP_LIKE,
                         SEARCH_OP_NOT_LIKE, SEARCH_OP_IN,
                         SEARCH_OP_STR_GT,   SEARCH_OP_STR_LT,
diff --git a/tests/check_baton.c b/tests/check_baton.c
index 93b4fcf7..8017ae7f 100644
--- a/tests/check_baton.c
+++ b/tests/check_baton.c
@@ -1860,6 +1860,12 @@ START_TEST(test_slurp_file) {
 }
 END_TEST
 
+// Having metadata on an item of (a = x, a = y), a search for "a = x"
+// gives correct results, as does a search for "a = y". However,
+// searching for "a = x and a = y" does not (nothing is returned).
+//
+// This is caused by overzealous cropping of search terms introduced
+// in commit d6d036
 START_TEST(test_regression_github_issue83) {
     option_flags flags = 0;
     rodsEnv env;
@@ -1929,6 +1935,48 @@ START_TEST(test_regression_github_issue83) {
 }
 END_TEST
 
+// Are all the search operators accepted? "n>=", "n<=" were not being
+// accepted by user input validation.
+START_TEST(test_regression_github_issue137) {
+    option_flags flags = SEARCH_OBJECTS;
+    rodsEnv env;
+    rcComm_t *conn = rods_login(&env);
+
+    // Not testing 'in' here
+    char *operators[] = { "=", "like", "not like", ">", "<",
+                          "n>", "n<", ">=", "<=", "n>=", "n<=" };
+
+    for (size_t i = 0; i < 11; i++) {
+        json_t *avu = json_pack("{s:s, s:s, s:s}",
+                                JSON_ATTRIBUTE_KEY, "numattr1",
+                                JSON_VALUE_KEY,     "10",
+                                JSON_OPERATOR_KEY,  operators[i]);
+        json_t *query = json_pack("{s:[o]}", JSON_AVUS_KEY, avu);
+
+        baton_error_t error;
+        json_t *results = search_metadata(conn, query, NULL, flags, &error);
+        ck_assert_msg(error.code == 0, operators[i]);
+
+        json_decref(query);
+        json_decref(results);
+    }
+
+    // Test 'in' here
+    json_t *avu = json_pack("{s:s, s:[s], s:s}",
+                            JSON_ATTRIBUTE_KEY, "numattr1",
+                            JSON_VALUE_KEY,     "10",
+                            JSON_OPERATOR_KEY,  "in");
+    json_t *query = json_pack("{s:[o]}", JSON_AVUS_KEY, avu);
+
+    baton_error_t error;
+    json_t *results = search_metadata(conn, query, NULL, flags, &error);
+    ck_assert_msg(error.code == 0, "in");
+    json_decref(query);
+    json_decref(results);
+
+    if (conn) rcDisconnect(conn);
+}
+END_TEST
 
 Suite *baton_suite(void) {
     Suite *suite = suite_create("baton");
@@ -2003,6 +2051,7 @@ Suite *baton_suite(void) {
     tcase_add_checked_fixture (regression_tests, basic_setup, basic_teardown);
 
     tcase_add_test(regression_tests, test_regression_github_issue83);
+    tcase_add_test(regression_tests, test_regression_github_issue137);
 
     suite_add_tcase(suite, utilities_tests);
     suite_add_tcase(suite, basic_tests);
diff --git a/tests/metadata/meta1.imeta b/tests/metadata/meta1.imeta
index c948ee6e..c546b538 100644
--- a/tests/metadata/meta1.imeta
+++ b/tests/metadata/meta1.imeta
@@ -23,3 +23,7 @@ add -d __IRODS_TEST_ROOT__/r1.txt a y
 add -d __IRODS_TEST_ROOT__/r1.txt b x
 add -d __IRODS_TEST_ROOT__/r1.txt b y
 add -d __IRODS_TEST_ROOT__/r1.txt b z
+
+add -d __IRODS_TEST_ROOT__/r1.txt numattr1 1
+add -d __IRODS_TEST_ROOT__/r1.txt numattr1 10
+add -d __IRODS_TEST_ROOT__/r1.txt numattr1 100