Index: kernel/generic/include/interrupt.h
===================================================================
--- kernel/generic/include/interrupt.h	(revision b7fd2a02e4161f4edd38548e7f8456b8021549be)
+++ kernel/generic/include/interrupt.h	(revision 393302009dc835da26285d65656e166c29b4540f)
@@ -61,7 +61,7 @@
 
 extern void fault_from_uspace(istate_t *, const char *, ...)
-    PRINTF_ATTRIBUTE(2, 3);
+    _HELENOS_PRINTF_ATTRIBUTE(2, 3);
 extern void fault_if_from_uspace(istate_t *, const char *, ...)
-    PRINTF_ATTRIBUTE(2, 3);
+    _HELENOS_PRINTF_ATTRIBUTE(2, 3);
 extern istate_t *istate_get(thread_t *);
 extern iroutine_t exc_register(unsigned int, const char *, bool, iroutine_t);
Index: kernel/generic/include/log.h
===================================================================
--- kernel/generic/include/log.h	(revision b7fd2a02e4161f4edd38548e7f8456b8021549be)
+++ kernel/generic/include/log.h	(revision 393302009dc835da26285d65656e166c29b4540f)
@@ -48,7 +48,7 @@
 extern int log_vprintf(const char *, va_list);
 extern int log_printf(const char *, ...)
-    PRINTF_ATTRIBUTE(1, 2);
+    _HELENOS_PRINTF_ATTRIBUTE(1, 2);
 extern int log(log_facility_t, log_level_t, const char *, ...)
-    PRINTF_ATTRIBUTE(3, 4);
+    _HELENOS_PRINTF_ATTRIBUTE(3, 4);
 
 extern sys_errno_t sys_klog(sysarg_t, void *buf, size_t size,
Index: kernel/generic/include/panic.h
===================================================================
--- kernel/generic/include/panic.h	(revision b7fd2a02e4161f4edd38548e7f8456b8021549be)
+++ kernel/generic/include/panic.h	(revision 393302009dc835da26285d65656e166c29b4540f)
@@ -66,5 +66,5 @@
 extern void panic_common(panic_category_t, struct istate *, int,
     uintptr_t, const char *, ...) __attribute__ ((noreturn))
-    PRINTF_ATTRIBUTE(5, 6);
+    _HELENOS_PRINTF_ATTRIBUTE(5, 6);
 
 #endif
Index: kernel/generic/include/print.h
===================================================================
--- kernel/generic/include/print.h	(revision b7fd2a02e4161f4edd38548e7f8456b8021549be)
+++ kernel/generic/include/print.h	(revision 393302009dc835da26285d65656e166c29b4540f)
@@ -44,7 +44,7 @@
 extern int puts(const char *s);
 extern int printf(const char *fmt, ...)
-    PRINTF_ATTRIBUTE(1, 2);
+    _HELENOS_PRINTF_ATTRIBUTE(1, 2);
 extern int snprintf(char *str, size_t size, const char *fmt, ...)
-    PRINTF_ATTRIBUTE(3, 4);
+    _HELENOS_PRINTF_ATTRIBUTE(3, 4);
 
 extern int vprintf(const char *fmt, va_list ap);
Index: kernel/generic/include/printf/verify.h
===================================================================
--- kernel/generic/include/printf/verify.h	(revision b7fd2a02e4161f4edd38548e7f8456b8021549be)
+++ kernel/generic/include/printf/verify.h	(revision 393302009dc835da26285d65656e166c29b4540f)
@@ -36,20 +36,20 @@
 #define KERN_PRINTF_VERIFY_H_
 
-#ifndef NVERIFY_PRINTF
+#ifndef _HELENOS_NVERIFY_PRINTF
 
 #ifdef __clang__
-#define PRINTF_ATTRIBUTE(start, end) \
+#define _HELENOS_PRINTF_ATTRIBUTE(start, end) \
 	__attribute__((format(__printf__, start, end)))
 #else
-#define PRINTF_ATTRIBUTE(start, end) \
+#define _HELENOS_PRINTF_ATTRIBUTE(start, end) \
 	__attribute__((format(gnu_printf, start, end)))
 #endif
 
 
-#else /* NVERIFY_PRINTF */
+#else /* _HELENOS_NVERIFY_PRINTF */
 
-#define PRINTF_ATTRIBUTE(start, end)
+#define _HELENOS_PRINTF_ATTRIBUTE(start, end)
 
-#endif /* NVERIFY_PRINTF */
+#endif /* _HELENOS_NVERIFY_PRINTF */
 
 #endif