Index: uspace/lib/c/generic/io/printf_core.c
===================================================================
--- uspace/lib/c/generic/io/printf_core.c	(revision e330da6e8c9b0dc3c32eed16c06b64b13f0a6963)
+++ uspace/lib/c/generic/io/printf_core.c	(revision ff87f70e4fd5be2331ceca65c6409f318b2a815b)
@@ -1454,4 +1454,7 @@
 				else
 					qualifier = PrintfQualifierLongLong;
+				i = nxt;
+				uc = str_decode(fmt, &nxt, STR_NO_LIMIT);
+				break;
 			case 'h':
 				/* Char or short */