diff --git a/historic/jam/src/Jambase b/historic/jam/src/Jambase
index fe4e128f4..e70dbf4fa 100644
--- a/historic/jam/src/Jambase
+++ b/historic/jam/src/Jambase
@@ -79,7 +79,7 @@ rule boost-build ( dir ? )
     # Add the given directory to the path so we can find the build
     # system. If dir is empty, has no effect.
     #
-    BOOST_BUILD_PATH = $(dir:R=$(.boost-build-file:D)) $(BOOST_BUILD_PATH) ;
+    BOOST_BUILD_PATH = $(BOOST_BUILD_PATH) $(dir:R=$(.boost-build-file:D)) ;
     
     # We might have just modified the *global* value of BOOST_BUILD_PATH.
     # The code that loads the rest of Boost.Build, in particular the 
diff --git a/historic/jam/src/jambase.c b/historic/jam/src/jambase.c
index 772b685dd..2feafbcbd 100644
--- a/historic/jam/src/jambase.c
+++ b/historic/jam/src/jambase.c
@@ -40,7 +40,7 @@ char *jambase[] = {
 "ECHO ;\n",
 "EXIT \"Please consult the documentation at 'http://www.boost.org'.\" ;\n",
 "}\n",
-"BOOST_BUILD_PATH = $(dir:R=$(.boost-build-file:D)) $(BOOST_BUILD_PATH) ;\n",
+"BOOST_BUILD_PATH = $(BOOST_BUILD_PATH) $(dir:R=$(.boost-build-file:D)) ;\n",
 "_poke .ENVIRON : BOOST_BUILD_PATH : $(BOOST_BUILD_PATH) ;\n",
 "local bootstrap-file =\n",
 "[ GLOB $(BOOST_BUILD_PATH) : bootstrap.jam ] ;\n",