Index: kernel/generic/include/interrupt.h
===================================================================
--- kernel/generic/include/interrupt.h	(revision 04357767a90c7f3afb5035aee20bc56c354efbb8)
+++ kernel/generic/include/interrupt.h	(revision 9ac2013bb53c62688dcd0e2009ddb5c40df48cc1)
@@ -37,4 +37,5 @@
 
 #include <arch/interrupt.h>
+#include <print.h>
 #include <typedefs.h>
 #include <proc/task.h>
@@ -57,5 +58,6 @@
 extern exc_table_t exc_table[];
 
-extern void fault_if_from_uspace(istate_t *, const char *, ...);
+extern void fault_if_from_uspace(istate_t *, const char *, ...)
+    PRINTF_ATTRIBUTE(2, 3);
 extern iroutine_t exc_register(unsigned int, const char *, bool, iroutine_t);
 extern void exc_dispatch(unsigned int, istate_t *);
Index: kernel/generic/include/panic.h
===================================================================
--- kernel/generic/include/panic.h	(revision 04357767a90c7f3afb5035aee20bc56c354efbb8)
+++ kernel/generic/include/panic.h	(revision 9ac2013bb53c62688dcd0e2009ddb5c40df48cc1)
@@ -37,4 +37,5 @@
 
 #include <typedefs.h>
+#include <print.h>
 
 #define panic(fmt, ...) \
@@ -62,5 +63,6 @@
 
 extern void panic_common(panic_category_t, struct istate *, int,
-    uintptr_t, const char *, ...) __attribute__ ((noreturn));
+    uintptr_t, const char *, ...) __attribute__ ((noreturn))
+    PRINTF_ATTRIBUTE(5, 6);
 
 #endif