diff --git a/tools/regression/build/Jamroot.jam b/tools/regression/build/Jamroot.jam
index 46719d41f88..7ba2abae6c3 100644
--- a/tools/regression/build/Jamroot.jam
+++ b/tools/regression/build/Jamroot.jam
@@ -4,7 +4,7 @@
 
 # Distributed under the Boost Software License, Version 1.0.
 # See http://www.boost.org/LICENSE_1_0.txt
- 
+
 
 if [ glob ../../../boost-build.jam ]
 {
@@ -16,28 +16,30 @@ else
     use-project /boost : [ MATCH --boost=(.*) : [ modules.peek : ARGV ] ] ;
 }
 
+local source_location ;
 if ! [ glob ../src/process_jam_log.cpp ]
 {
-    project boost/regression
-        :
-        source-location ..
-        ;
+    source_location = .. ;
 }
 else
 {
-    project boost/regression
-        :
-        source-location ../src
-        ;
+    source_location = ../src ;
 }
 
+project boost/regression
+    :
+    source-location $(source_location)
+    :
+    requirements
+        <dependency>/boost//headers
+    ;
+
 obj tiny_xml
     :
     detail/tiny_xml.cpp
     :
     <define>BOOST_ALL_NO_LIB=1
     <define>_CRT_SECURE_NO_WARNINGS
-    <implicit-dependency>/boost//headers
     :
     release
     ;
@@ -51,7 +53,6 @@ exe process_jam_log
     :
     <define>BOOST_ALL_NO_LIB=1
     <define>_CRT_SECURE_NO_WARNINGS
-    <implicit-dependency>/boost//headers
     :
     release
     ;
@@ -64,7 +65,6 @@ exe compiler_status
     /boost/filesystem//boost_filesystem/<link>static
     :
     <define>BOOST_ALL_NO_LIB=1
-    <implicit-dependency>/boost//headers
     :
     release
     ;
@@ -77,7 +77,6 @@ exe library_status
     /boost/filesystem//boost_filesystem/<link>static
     :
     <define>BOOST_ALL_NO_LIB=1
-    <implicit-dependency>/boost//headers
     :
     release
     ;
@@ -94,7 +93,6 @@ exe boost_report
     /boost//iostreams/<link>static
     :
     <define>BOOST_ALL_NO_LIB=1
-    <implicit-dependency>/boost//headers
     :
     release
     ;