diff --git a/schat/src/common/plugins/Idle/Idle.pro b/schat/src/common/plugins/Idle/Idle.pro

index 75decda..0abbd87 100644

--- a/schat/src/common/plugins/Idle/Idle.pro

+++ b/schat/src/common/plugins/Idle/Idle.pro

@@ -19,6 +19,7 @@ SCHAT_CORE_LIB = 1

 QT = core gui

 greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

+greaterThan(QT_MAJOR_VERSION, 4): QT += x11extras

 HEADERS  = \

    Idle.h \

diff --git a/schat/src/schat2/schat2-core.pro b/schat/src/schat2/schat2-core.pro

index bd09686..e804d6f 100644

--- a/schat/src/schat2/schat2-core.pro

+++ b/schat/src/schat2/schat2-core.pro

@@ -236,14 +236,7 @@ contains( SCHAT_EXTENSIONS, 1 ) {

     Extensions.cpp \

     qzip/qzip.cpp \

-  contains(QT_CONFIG, system-zlib) {

-    if(unix|win32-g++*):LIBS += -lz

-    else:               LIBS += -lzlib

-  }

-  else {

-    greaterThan(QT_MAJOR_VERSION, 4): DEFINES += Z_PREFIX

-    INCLUDEPATH += ../3rdparty/zlib

-  }

+  LIBS += -lz

 }

 else {

   DEFINES += SCHAT_NO_EXTENSIONS