diff --git a/apache2/apache2_config.c b/apache2/apache2_config.c
index 74c76a58..6b71dea7 100644
--- a/apache2/apache2_config.c
+++ b/apache2/apache2_config.c
@@ -1749,6 +1749,9 @@ char *parser_conn_limits_operator(apr_pool_t *mp, const char *p2,
 
     apr_filepath_merge(&file, config_orig_path, param, APR_FILEPATH_TRUENAME,
         mp);
+    if (config_orig_path == NULL) {
+        return apr_psprintf(mp, "ModSecurity: failed to duplicate filename in parser_conn_limits_operator");
+    }
 
     if ((strncasecmp(p2, "!@ipMatchFromFile", strlen("!@ipMatchFromFile")) == 0) ||
         (strncasecmp(p2, "!@ipMatchF", strlen("!@ipMatchF")) == 0)) {
diff --git a/apache2/persist_dbm.c b/apache2/persist_dbm.c
index edd41c11..b71796bd 100644
--- a/apache2/persist_dbm.c
+++ b/apache2/persist_dbm.c
@@ -608,8 +608,8 @@ int collection_store(modsec_rec *msr, apr_table_t *col) {
 
     rc = apr_sdbm_store(dbm, key, value, APR_SDBM_REPLACE);
     if (rc != APR_SUCCESS) {
-        msr_log(msr, 1, "collection_store: Failed to write to DBM file \"%s\": %s", dbm_filename,
-                get_apr_error(msr->mp, rc));
+        msr_log(msr, 1, "collection_store: Failed to write to DBM file \"%s\": %s (key=%s, length=%d)", dbm_filename,
+               get_apr_error(msr->mp, rc), key.dptr, value.dsize);
         if (dbm != NULL) {
 #ifdef GLOBAL_COLLECTION_LOCK
             apr_sdbm_close(dbm);