Index: tests/exceptions/cancel/coroutine.cfa
===================================================================
--- tests/exceptions/cancel/coroutine.cfa	(revision 69c5c001921edf7a77ff0c53ac4f0d0e8044b405)
+++ tests/exceptions/cancel/coroutine.cfa	(revision d5631b3ed1950913233bb5192a0e073e7b47bc77)
@@ -1,5 +1,4 @@
 // Try cancelling a coroutine.
 
-#include <stdio.h>
 #include <coroutine.hfa>
 #include <exception.hfa>
Index: tests/exceptions/conditional.cfa
===================================================================
--- tests/exceptions/conditional.cfa	(revision 69c5c001921edf7a77ff0c53ac4f0d0e8044b405)
+++ tests/exceptions/conditional.cfa	(revision d5631b3ed1950913233bb5192a0e073e7b47bc77)
@@ -5,5 +5,4 @@
 
 #include <exception.hfa>
-#include <stdio.h>
 
 VTABLE_DECLARATION(num_error)(
Index: tests/exceptions/except-io.hfa
===================================================================
--- tests/exceptions/except-io.hfa	(revision 69c5c001921edf7a77ff0c53ac4f0d0e8044b405)
+++ tests/exceptions/except-io.hfa	(revision d5631b3ed1950913233bb5192a0e073e7b47bc77)
@@ -1,5 +1,3 @@
 // Common tools for the exception tests.
-
-#include <stdio.h>
 
 // Echo when a destructor is run and an area/block is left.
Index: tests/exceptions/trash.cfa
===================================================================
--- tests/exceptions/trash.cfa	(revision 69c5c001921edf7a77ff0c53ac4f0d0e8044b405)
+++ tests/exceptions/trash.cfa	(revision d5631b3ed1950913233bb5192a0e073e7b47bc77)
@@ -2,5 +2,4 @@
 
 #include <exception.hfa>
-#include <stdio.h>
 
 TRIVIAL_EXCEPTION(yin);