diff --git a/applications/plugins/picopass/scenes/picopass_scene_read_card_success.c b/applications/plugins/picopass/scenes/picopass_scene_read_card_success.c
index bb170ac4..0d1cc78c 100644
--- a/applications/plugins/picopass/scenes/picopass_scene_read_card_success.c
+++ b/applications/plugins/picopass/scenes/picopass_scene_read_card_success.c
@@ -33,7 +33,7 @@ void picopass_scene_read_card_success_on_enter(void* context) {
     uint8_t csn[PICOPASS_BLOCK_LEN];
     memcpy(csn, &AA1->data[PICOPASS_CSN_BLOCK_INDEX], PICOPASS_BLOCK_LEN);
     for(uint8_t i = 0; i < PICOPASS_BLOCK_LEN; i++) {
-        furi_string_cat_printf(csn_str, " %02X", csn[i]);
+        furi_string_cat_printf(csn_str, "%02X ", csn[i]);
     }
 
     // Neither of these are valid.  Indicates the block was all 0x00 or all 0xff