diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 5ec8ad238d03..7caf619ee9c2 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -3141,8 +3141,6 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
 			switch (*fmt) {
 			case 'S':
 			case 's':
-			case 'F':
-			case 'f':
 			case 'x':
 			case 'K':
 			case 'e':