diff --git a/prospero/Makefile.in b/prospero/Makefile.in
index 4885a69..e2f64d8 100755
--- a/prospero/Makefile.in
+++ b/prospero/Makefile.in
@@ -21,15 +21,15 @@ LIB_SUBDIRS = \
 	lib/ardp \
 	lib/psrv \
 	lib/filters \
-        $(OPTIONAL_LIB_SUBDIRS)
+	$(OPTIONAL_LIB_SUBDIRS)
 
 BIN_SUBDIRS =  \
-        $(OPTIONAL_BIN_SUBDIRS) \
+	$(OPTIONAL_BIN_SUBDIRS) \
 	server \
-        user
+	user
 
 SUBDIRS = \
-        $(LIB_SUBDIRS) \
+	$(LIB_SUBDIRS) \
 	$(BIN_SUBDIRS)
 
 all: all_subdirs
@@ -52,9 +52,9 @@ installdirs:
 	done
 
 installfiles:
-	-for i in $(BINSUBDIRS); do \
-	    (cd $$i && $(MAKE) install) ; \
-	    done
+	-for i in $(BIN_SUBDIRS); do \
+		(cd $$i && $(MAKE) install) ; \
+	done
 
 #
 # Recursively `depend' each module.