diff --git a/doc/sources/Makefile.am b/doc/sources/Makefile.am
index 796800c..dc0e0e7 100644
--- a/doc/sources/Makefile.am
+++ b/doc/sources/Makefile.am
@@ -1,24 +1,24 @@
 install-data-local:
-	$(mkinstalldirs) $(DESTDIR)/usr/share/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources
-	$(mkinstalldirs) $(DESTDIR)/usr/share/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/c
-	$(mkinstalldirs) $(DESTDIR)/usr/share/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/c++
-	$(mkinstalldirs) $(DESTDIR)/usr/share/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/ttx
+	$(mkinstalldirs) $(DESTDIR)$(datadir)/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources
+	$(mkinstalldirs) $(DESTDIR)$(datadir)/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/c
+	$(mkinstalldirs) $(DESTDIR)$(datadir)/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/c++
+	$(mkinstalldirs) $(DESTDIR)$(datadir)/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/ttx
 	
-	$(INSTALL_DATA)   c/module.c                $(DESTDIR)/usr/share/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/c/module.c
-	$(INSTALL_DATA)   c/main.c                  $(DESTDIR)/usr/share/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/c/main.c
-	$(INSTALL_SCRIPT) c/compile                 $(DESTDIR)/usr/share/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/c/compile
+	$(INSTALL_DATA)   c/module.c                $(DESTDIR)$(datadir)/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/c/module.c
+	$(INSTALL_DATA)   c/main.c                  $(DESTDIR)$(datadir)/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/c/main.c
+	$(INSTALL_SCRIPT) c/compile                 $(DESTDIR)$(datadir)/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/c/compile
 	
-	$(INSTALL_SCRIPT)  c++/compile              $(DESTDIR)/usr/share/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/c++/compile
-	$(INSTALL_DATA)    c++/main.cpp             $(DESTDIR)/usr/share/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/c++/main.cpp
-	$(INSTALL_DATA)    c++/triangle.cpp         $(DESTDIR)/usr/share/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/c++/triangle.cpp
-	$(INSTALL_DATA)    c++/polygon.hpp          $(DESTDIR)/usr/share/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/c++/polygon.hpp
-	$(INSTALL_DATA)    c++/README               $(DESTDIR)/usr/share/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/c++/README
+	$(INSTALL_SCRIPT)  c++/compile              $(DESTDIR)$(datadir)/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/c++/compile
+	$(INSTALL_DATA)    c++/main.cpp             $(DESTDIR)$(datadir)/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/c++/main.cpp
+	$(INSTALL_DATA)    c++/triangle.cpp         $(DESTDIR)$(datadir)/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/c++/triangle.cpp
+	$(INSTALL_DATA)    c++/polygon.hpp          $(DESTDIR)$(datadir)/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/c++/polygon.hpp
+	$(INSTALL_DATA)    c++/README               $(DESTDIR)$(datadir)/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/c++/README
 	
-	$(INSTALL_DATA)    ttx/Makefile.am          $(DESTDIR)/usr/share/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/ttx/Makefile.am
-	$(INSTALL_DATA)    ttx/README               $(DESTDIR)/usr/share/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/ttx/README
-	$(INSTALL_SCRIPT)  ttx/compile-c++          $(DESTDIR)/usr/share/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/ttx/compile-c++
-	$(INSTALL_DATA)    ttx/fmt_codec_ttx_defs.h $(DESTDIR)/usr/share/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/ttx/fmt_codec_ttx_defs.h
-	$(INSTALL_DATA)    ttx/fmt_codec_ttx.h      $(DESTDIR)/usr/share/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/ttx/fmt_codec_ttx.h
-	$(INSTALL_DATA)    ttx/fmt_codec_ttx.cpp    $(DESTDIR)/usr/share/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/ttx/fmt_codec_ttx.cpp
+	$(INSTALL_DATA)    ttx/Makefile.am          $(DESTDIR)$(datadir)/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/ttx/Makefile.am
+	$(INSTALL_DATA)    ttx/README               $(DESTDIR)$(datadir)/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/ttx/README
+	$(INSTALL_SCRIPT)  ttx/compile-c++          $(DESTDIR)$(datadir)/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/ttx/compile-c++
+	$(INSTALL_DATA)    ttx/fmt_codec_ttx_defs.h $(DESTDIR)$(datadir)/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/ttx/fmt_codec_ttx_defs.h
+	$(INSTALL_DATA)    ttx/fmt_codec_ttx.h      $(DESTDIR)$(datadir)/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/ttx/fmt_codec_ttx.h
+	$(INSTALL_DATA)    ttx/fmt_codec_ttx.cpp    $(DESTDIR)$(datadir)/doc/ksquirrel-libs/$(PACKAGE_VERSION)/sources/ttx/fmt_codec_ttx.cpp
 
 EXTRA_DIST = c c++ ttx
\ No newline at end of file