diff --git a/libnfc/conf.c b/libnfc/conf.c
index 87aec26..ca5f801 100644
--- a/libnfc/conf.c
+++ b/libnfc/conf.c
@@ -66,6 +66,7 @@ conf_parse_file(const char *filename, void (*conf_keyvalue)(void *data, const ch
   regmatch_t *pmatch = malloc(sizeof(*pmatch) * nmatch);
   if (!pmatch) {
     log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "%s", "Not enough memory: malloc failed.");
+    regfree(&preg);
     return false;
   }
 
@@ -98,6 +99,7 @@ conf_parse_file(const char *filename, void (*conf_keyvalue)(void *data, const ch
   }
 
   free(pmatch);
+  regfree(&preg);
   return false;
 }