diff --git a/src/bin/ephoto_directory_thumb.c b/src/bin/ephoto_directory_thumb.c
index f899bf4..5ffe13b 100644
--- a/src/bin/ephoto_directory_thumb.c
+++ b/src/bin/ephoto_directory_thumb.c
@@ -86,7 +86,7 @@ _populate_end(void *data)
 }
 
 static void
-_populate_error(int error, void *data)
+_populate_error(void *data, int error)
 {
    Ephoto_Directory_Thumb *dt = data;
    if (error) ERR("could not populate: %s", strerror(error));
diff --git a/src/bin/ephoto_thumb_browser.c b/src/bin/ephoto_thumb_browser.c
index d5427b7..eb8edbf 100644
--- a/src/bin/ephoto_thumb_browser.c
+++ b/src/bin/ephoto_thumb_browser.c
@@ -325,7 +325,7 @@ _ephoto_populate_end(void *data)
 }
 
 static void
-_ephoto_populate_error(int error, void *data)
+_ephoto_populate_error(void *data, int error)
 {
    Ephoto_Thumb_Browser *tb = data;
    if (error) ERR("could not populate: %s", strerror(error));