diff --git a/src/tools/qt4.jam b/src/tools/qt4.jam
index 0ca818109..1c0410420 100644
--- a/src/tools/qt4.jam
+++ b/src/tools/qt4.jam
@@ -286,13 +286,13 @@ rule init ( prefix )
                 : <name>QtAssistantClient$(suffix_version) <variant>release
                 :
                 : # usage-requirements
-                  <include>$(.prefix)/include/QtAssistantClient 
+                  <include>$(.prefix)/include/QtAssistant
                 ;
             lib QtAssistantClient : QtGui
                 : <name>QtAssistantClient$(suffix_debug)$(suffix_version) <variant>debug
                 :
                 : # usage-requirements
-                  <include>$(.prefix)/include/QtAssistantClient 
+                  <include>$(.prefix)/include/QtAssistant
                 ;
             
             # Support for dynamic Widgets (Qt 4.1)