diff --git a/CMakeLists.txt b/CMakeLists.txt
index f5b228975..dee229e9b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -70,6 +70,10 @@ if(NOT DEFINED DATAROOTDIR)
   set(DATAROOTDIR ${CMAKE_INSTALL_PREFIX}/share)
 endif()
 
+if(NOT DEFINED WEECHAT_SHAREDIR)
+    set(WEECHAT_SHAREDIR ${DATAROOTDIR}/weechat)
+endif()
+
 if(NOT DEFINED MANDIR)
   set(MANDIR ${DATAROOTDIR}/man)
 endif()
diff --git a/config.h.cmake b/config.h.cmake
index 41d47ce21..62882e514 100644
--- a/config.h.cmake
+++ b/config.h.cmake
@@ -14,7 +14,7 @@
 #define PACKAGE_NAME "@PROJECT_NAME@"
 #define PACKAGE_STRING "@PKG_STRING@"
 #define WEECHAT_LIBDIR "@WEECHAT_LIBDIR@"
-#define WEECHAT_SHAREDIR "@DATAROOTDIR@"
+#define WEECHAT_SHAREDIR "@WEECHAT_SHAREDIR@"
 #define LOCALEDIR "@LOCALEDIR@"
 #define WEECHAT_HOME "@WEECHAT_HOME@"
 #define CA_FILE "@CA_FILE@"