diff --git a/packages/http/Makefile.in b/packages/http/Makefile.in
index eaea5d4e5..4b2bc2717 100755
--- a/packages/http/Makefile.in
+++ b/packages/http/Makefile.in
@@ -110,7 +110,7 @@ install:	$(LIBPL)
 		$(INSTALL_PROGRAM) $(SOLIBS) $(BINTARGET)
 		mkdir -p $(PLTARGET)
 		mkdir -p $(PLTARGET)/web/icons
-		mkdir -p $(LIBDIR)/web/css
+		mkdir -p $(DESTDIR)$(LIBDIR)/web/css
 		$(INSTALL_DATA) $(LIBPL) $(PLTARGET)
 		$(INSTALL_DATA) $(srcdir)/README $(PLTARGET)
 		$(INSTALL_DATA) $(srcdir)/web/icons/*.png $(PLTARGET)/web/icons
diff --git a/packages/zlib/Makefile.in b/packages/zlib/Makefile.in
index 0be5c53fd..0db9c6132 100644
--- a/packages/zlib/Makefile.in
+++ b/packages/zlib/Makefile.in
@@ -107,7 +107,7 @@ zlib4pl.@SO@:	$(ZOBJ)
 		$(LD) $(LDFLAGS) -o $@ $(ZOBJ) $(LIBS)
 
 install:	$(TARGETS) $(LIBPL)
-		mkdir -p $(DESTDIR)$(BINTARGET)
+		mkdir -p $(BINTARGET)
 		for f in $(TARGETS); do \
 		  $(INSTALL_PROGRAM) $$f $(BINTARGET); \
 		done