--- a/Makefile.in
+++ b/Makefile.in
@@ -41,18 +41,18 @@
 
 transform=@program_transform_name@
 
-prefix = @prefix@
+prefix = $(DESTDIR)@prefix@
-exec_prefix = @exec_prefix@
+exec_prefix = $(DESTDIR)@exec_prefix@
 
 # Directory in which to install scripts.
-bindir = @bindir@
+bindir = $(DESTDIR)@bindir@
 
 # Directory in which to install library files.
-datadir = @datadir@
+datadir = $(DESTDIR)@datadir@
 acdatadir = $(datadir)/autoconf
 
 # Directory in which to install documentation info files.
-infodir = @infodir@
+infodir = $(DESTDIR)@infodir@
 
 #### End of system configuration section. ####