diff --git a/src/backends/meta-eis-client.c b/src/backends/meta-eis-client.c
index 86534fe5b..66a5d9509 100644
--- a/src/backends/meta-eis-client.c
+++ b/src/backends/meta-eis-client.c
@@ -228,7 +228,7 @@ has_region (struct eis_device *eis_device,
             int                width,
             int                height)
 {
-  int i = 0;
+  size_t i = 0;
 
   while (TRUE)
     {