diff --git a/extendedcommands.c b/extendedcommands.c
index a6db1d5..f22e35e 100644
--- a/extendedcommands.c
+++ b/extendedcommands.c
@@ -437,17 +437,21 @@
 
 int format_unknown_device(const char *device, const char* path, const char *fs_type)
 {
+    printf("Formatting unknown device.\n");
+
     // device may simply be a name, like "system"
     if (device[0] != '/')
         return erase_partition(device, fs_type);
     
-    if (strcmp("ext3", device) == 0) {
+    if (strcmp("ext3", fs_type) == 0) {
+        printf("Formatting ext3 device.\n");
         if (0 != ensure_path_unmounted(path))
             return -11;
         return format_ext3_device(device);
     }
     
-    if (strcmp("ext2", device) == 0) {
+    if (strcmp("ext2", fs_type) == 0) {
+        printf("Formatting ext2 device.\n");
         if (0 != ensure_path_unmounted(path))
             return -12;
         return format_ext2_device(device);