diff --git a/src/build-system.jam b/src/build-system.jam
index e0ad90560..e4ae525b6 100755
--- a/src/build-system.jam
+++ b/src/build-system.jam
@@ -65,6 +65,12 @@ if ! $(ignore-config)
     {
         modules.load site-config : : /etc $(user-path) ;
     }
+    
+    if --debug-configuration in [ modules.peek : ARGV ]
+    {
+        ECHO "notice: loaded site-config.jam from " 
+          [ NORMALIZE_PATH [ modules.binding site-config ] ] ;
+    }    
 }
 
 
@@ -78,6 +84,12 @@ module user-config
 if ! $(ignore-config)
 {    
     modules.load user-config : : $(user-path) ;    
+    if --debug-configuration in [ modules.peek : ARGV ]
+    {
+        ECHO "notice: loaded user-config.jam from " 
+          [ NORMALIZE_PATH [ modules.binding user-config ] ] ;
+    }    
+
 }