diff --git a/src/util.c b/src/util.c
index add739a..dd4f2a1 100644
--- a/src/util.c
+++ b/src/util.c
@@ -17,6 +17,10 @@ Options GLOBAL_OPTS;
 void cleanup_options(Options *opts) {
     FREE_CHECKED(opts->config_path);
     FREE_CHECKED(opts->gpio_path);
+    FREE_CHECKED(opts->temp_key);
+    FREE_CHECKED(opts->humid_key);
+    FREE_CHECKED(opts->fail_key);
+    FREE_CHECKED(opts->lcd_version);
 }
 
 void *malloc_checked(size_t n) {