diff --git a/src/shared/util.c b/src/shared/util.c
index f24b5b4ec..85487230a 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -5994,7 +5994,7 @@ int on_ac_power(void) {
 
         d = opendir("/sys/class/power_supply");
         if (!d)
-                return -errno;
+                return errno == ENOENT ? true : -errno;
 
         for (;;) {
                 struct dirent *de;