diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 9a93cb4f9..1e2e0cd61 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -19,6 +19,12 @@
 # along with WeeChat.  If not, see <http://www.gnu.org/licenses/>.
 #
 
+if(COMMAND cmake_policy)
+  if(POLICY CMP0017)
+    cmake_policy(SET CMP0017 NEW)
+  endif(POLICY CMP0017)
+endif(COMMAND cmake_policy)
+
 ADD_DEFINITIONS(-DHAVE_CONFIG_H)
 
 INCLUDE(CheckIncludeFiles)
diff --git a/src/gui/gtk/CMakeLists.txt b/src/gui/gtk/CMakeLists.txt
index e6596205d..da542e329 100644
--- a/src/gui/gtk/CMakeLists.txt
+++ b/src/gui/gtk/CMakeLists.txt
@@ -18,6 +18,10 @@
 # along with WeeChat.  If not, see <http://www.gnu.org/licenses/>.
 #
 
+if(COMMAND cmake_policy)
+  cmake_policy(SET CMP0003 NEW)
+endif(COMMAND cmake_policy)
+
 SET(WEECHAT_GTK_SRC
 gui-gtk.h
 gui-gtk-bar-window.c