diff --git a/src/nwipe.c b/src/nwipe.c
index 5b6143a..8c6398e 100644
--- a/src/nwipe.c
+++ b/src/nwipe.c
@@ -397,7 +397,7 @@ int main( int argc, char** argv )
         if( c2[i]->device_size == 0 )
         {
             nwipe_log( NWIPE_LOG_ERROR,
-                       "%s, sect/blk/dev %llu/%i/%i",
+                       "%s, sect/blk/dev %llu/%i/%llu",
                        c2[i]->device_name,
                        c2[i]->device_sector_size,
                        c2[i]->device_block_size,
@@ -408,7 +408,7 @@ int main( int argc, char** argv )
         else
         {
             nwipe_log( NWIPE_LOG_NOTICE,
-                       "%s, sect/blk/dev %llu/%i/%i",
+                       "%s, sect/blk/dev %llu/%i/%llu",
                        c2[i]->device_name,
                        c2[i]->device_sector_size,
                        c2[i]->device_block_size,