diff --git a/projekte/protothreads/Makefile b/projekte/protothreads/Makefile
index 40d24db..93f55b3 100644
--- a/projekte/protothreads/Makefile
+++ b/projekte/protothreads/Makefile
@@ -112,7 +112,7 @@ DEBUG = dwarf-2
 #     Each directory must be seperated by a space.
 #     Use forward slashes for directory separators.
 #     For a directory that has spaces, enclose it in quotes.
-EXTRAINCDIRS = 
+EXTRAINCDIRS = pt
 
 
 # Compiler flag to set the C Standard level.
diff --git a/projekte/protothreads/lc-switch.h b/projekte/protothreads/pt/lc-switch.h
similarity index 100%
rename from projekte/protothreads/lc-switch.h
rename to projekte/protothreads/pt/lc-switch.h
diff --git a/projekte/protothreads/lc.h b/projekte/protothreads/pt/lc.h
similarity index 100%
rename from projekte/protothreads/lc.h
rename to projekte/protothreads/pt/lc.h
diff --git a/projekte/protothreads/pt.h b/projekte/protothreads/pt/pt.h
similarity index 100%
rename from projekte/protothreads/pt.h
rename to projekte/protothreads/pt/pt.h