Index: uspace/lib/c/include/trace.h
===================================================================
--- uspace/lib/c/include/trace.h	(revision 8df5f20c3e20072bcf616568836c1d08eba227c2)
+++ uspace/lib/c/include/trace.h	(revision 04c0fc5aa45ec90f84d2ef0b8b067f698c6f5f0e)
@@ -33,6 +33,6 @@
  */
 
-#ifndef LIBC_TRACE_H_
-#define LIBC_TRACE_H_
+#ifndef _LIBC_TRACE_H_
+#define _LIBC_TRACE_H_
 
 #define _NO_TRACE  __attribute__((no_instrument_function))