diff --git a/oauth.prf b/oauth.prf
index caf3ce2..2c09fdd 100644
--- a/oauth.prf
+++ b/oauth.prf
@@ -1,8 +1,8 @@
 QOAUTH_INCDIR = $$[QT_INSTALL_HEADERS]
 QOAUTH_LIBDIR = $$[QT_INSTALL_LIBS]
 
-QOAUTH_INCDIR ~= s!/qt4*!!
-QOAUTH_LIBDIR ~= s!/qt4*!!
+QOAUTH_INCDIR ~= s!/qt[45]*!!
+QOAUTH_LIBDIR ~= s!/qt[45]*!!
 
 CONFIG *= qt
 CONFIG += crypto