diff --git a/testcode/lib/strcat-test.c b/testcode/lib/strcat-test.c
index 2e00b80cb..58119e27a 100644
--- a/testcode/lib/strcat-test.c
+++ b/testcode/lib/strcat-test.c
@@ -1,5 +1,5 @@
-#include <unittest.h>
 #include <string.h>
+#include "unittest.h"
 
 #define SourceStringSize 257                            // test correct page passing (>256)
 
diff --git a/testcode/lib/strrchr-test.c b/testcode/lib/strrchr-test.c
index d2c2a20e4..a72c44db9 100644
--- a/testcode/lib/strrchr-test.c
+++ b/testcode/lib/strrchr-test.c
@@ -1,5 +1,5 @@
-#include <unittest.h>
 #include <string.h>
+#include "unittest.h"
                                                     
 static char TestString[] = "01234567890123456789";  // two times the same string
 static char Found[256];
diff --git a/include/unittest.h b/testcode/lib/unittest.h
similarity index 100%
rename from include/unittest.h
rename to testcode/lib/unittest.h