diff --git a/src/gui/curses/Makefile.am b/src/gui/curses/Makefile.am
index 9a98808e1..2823d879a 100644
--- a/src/gui/curses/Makefile.am
+++ b/src/gui/curses/Makefile.am
@@ -15,6 +15,8 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 #
 
+INCLUDES = -DLOCALEDIR=\"$(datadir)/locale\"
+
 bin_PROGRAMS = weechat-curses
 
 weechat_curses_LDADD = ../../common/lib_weechat_main.a \
diff --git a/src/gui/gtk/Makefile.am b/src/gui/gtk/Makefile.am
index c525a6764..1f7d6aff5 100644
--- a/src/gui/gtk/Makefile.am
+++ b/src/gui/gtk/Makefile.am
@@ -15,9 +15,9 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 #
 
-bin_PROGRAMS = weechat-gtk
+INCLUDES = -DLOCALEDIR=\"$(datadir)/locale\" $(GTK_CFLAGS)
 
-INCLUDES = $(GTK_CFLAGS)
+bin_PROGRAMS = weechat-gtk
 
 weechat_gtk_LDADD = ../../common/lib_weechat_main.a \
                     ../../irc/lib_weechat_irc.a \
diff --git a/src/irc/Makefile.am b/src/irc/Makefile.am
index ca78a810a..8bdc84cd8 100644
--- a/src/irc/Makefile.am
+++ b/src/irc/Makefile.am
@@ -15,6 +15,8 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 #
 
+INCLUDES = -DLOCALEDIR=\"$(datadir)/locale\"
+
 noinst_LIBRARIES = lib_weechat_irc.a
 
 lib_weechat_irc_a_SOURCES = irc.h \
diff --git a/src/plugins/Makefile.am b/src/plugins/Makefile.am
index f5b301f28..85740781c 100644
--- a/src/plugins/Makefile.am
+++ b/src/plugins/Makefile.am
@@ -15,6 +15,8 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 #
 
+INCLUDES = -DLOCALEDIR=\"$(datadir)/locale\"
+
 if PLUGIN_PERL
 perl_dir = perl
 endif
diff --git a/src/plugins/perl/Makefile.am b/src/plugins/perl/Makefile.am
index 0692b2536..74fe2b80a 100644
--- a/src/plugins/perl/Makefile.am
+++ b/src/plugins/perl/Makefile.am
@@ -15,7 +15,7 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 #
 
-INCLUDES = $(PERL_CFLAGS)
+INCLUDES = -DLOCALEDIR=\"$(datadir)/locale\" $(PERL_CFLAGS)
 
 noinst_LIBRARIES = lib_weechat_perl.a
 
diff --git a/weechat/src/gui/curses/Makefile.am b/weechat/src/gui/curses/Makefile.am
index 9a98808e1..2823d879a 100644
--- a/weechat/src/gui/curses/Makefile.am
+++ b/weechat/src/gui/curses/Makefile.am
@@ -15,6 +15,8 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 #
 
+INCLUDES = -DLOCALEDIR=\"$(datadir)/locale\"
+
 bin_PROGRAMS = weechat-curses
 
 weechat_curses_LDADD = ../../common/lib_weechat_main.a \
diff --git a/weechat/src/gui/gtk/Makefile.am b/weechat/src/gui/gtk/Makefile.am
index c525a6764..1f7d6aff5 100644
--- a/weechat/src/gui/gtk/Makefile.am
+++ b/weechat/src/gui/gtk/Makefile.am
@@ -15,9 +15,9 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 #
 
-bin_PROGRAMS = weechat-gtk
+INCLUDES = -DLOCALEDIR=\"$(datadir)/locale\" $(GTK_CFLAGS)
 
-INCLUDES = $(GTK_CFLAGS)
+bin_PROGRAMS = weechat-gtk
 
 weechat_gtk_LDADD = ../../common/lib_weechat_main.a \
                     ../../irc/lib_weechat_irc.a \
diff --git a/weechat/src/irc/Makefile.am b/weechat/src/irc/Makefile.am
index ca78a810a..8bdc84cd8 100644
--- a/weechat/src/irc/Makefile.am
+++ b/weechat/src/irc/Makefile.am
@@ -15,6 +15,8 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 #
 
+INCLUDES = -DLOCALEDIR=\"$(datadir)/locale\"
+
 noinst_LIBRARIES = lib_weechat_irc.a
 
 lib_weechat_irc_a_SOURCES = irc.h \
diff --git a/weechat/src/plugins/Makefile.am b/weechat/src/plugins/Makefile.am
index f5b301f28..85740781c 100644
--- a/weechat/src/plugins/Makefile.am
+++ b/weechat/src/plugins/Makefile.am
@@ -15,6 +15,8 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 #
 
+INCLUDES = -DLOCALEDIR=\"$(datadir)/locale\"
+
 if PLUGIN_PERL
 perl_dir = perl
 endif
diff --git a/weechat/src/plugins/perl/Makefile.am b/weechat/src/plugins/perl/Makefile.am
index 0692b2536..74fe2b80a 100644
--- a/weechat/src/plugins/perl/Makefile.am
+++ b/weechat/src/plugins/perl/Makefile.am
@@ -15,7 +15,7 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 #
 
-INCLUDES = $(PERL_CFLAGS)
+INCLUDES = -DLOCALEDIR=\"$(datadir)/locale\" $(PERL_CFLAGS)
 
 noinst_LIBRARIES = lib_weechat_perl.a