diff --git a/dat.h b/dat.h
index 2b8c14f..581302a 100644
--- a/dat.h
+++ b/dat.h
@@ -29,6 +29,11 @@ enum
 	Maxkouho	= 128,
 	Maxdisp		= 9,
 
+	/* Content purposes whose keys the engine never sees; IBus and
+	 * text-input-v3 number them alike, both after GTK. */
+	Purposepassword	= 8,
+	Purposepin	= 9,
+
 	Colfg	= 0x000000,
 	Colbg	= 0xffffff,
 	Colsep	= 0xd0d0d0,
diff --git a/ibus.c b/ibus.c
index 6456f9c..63a1106 100644
--- a/ibus.c
+++ b/ibus.c
@@ -16,8 +16,6 @@ enum
 	Relmask		= 1<<30,
 	/* IBus wire constants; the daemon does not link libibus. */
 	Ibuscappreedit	= 1<<0,
-	Ibuspurposepassword = 8,
-	Ibuspurposepin	= 9,
 	Ibusattrunderline = 1,
 	Ibusunderlinesingle = 1,
 	Ibuspreeditclear = 0,
@@ -313,8 +311,8 @@ sendrequest(Ictx *ctx, int op, u32int ks, u32int mod, Keyres *res)
 static int
 hidden(Ictx *ctx)
 {
-	return ctx->purpose == Ibuspurposepassword ||
-		ctx->purpose == Ibuspurposepin;
+	return ctx->purpose == Purposepassword ||
+		ctx->purpose == Purposepin;
 }
 
 static void
diff --git a/tests/ibus_test.c b/tests/ibus_test.c
index 17b46d1..ca04b7f 100644
--- a/tests/ibus_test.c
+++ b/tests/ibus_test.c
@@ -213,8 +213,8 @@ ibus_private_input_policy(struct ct *t)
 {
 	static const struct { u32int purpose; int want; } cases[] = {
 		{ 0, 0 },
-		{ Ibuspurposepassword, 1 },
-		{ Ibuspurposepin, 1 },
+		{ Purposepassword, 1 },
+		{ Purposepin, 1 },
 		{ 37, 0 },
 	};
 	Ibusfix f;
@@ -239,7 +239,7 @@ ibus_private_input_policy(struct ct *t)
 	contextkey(t, &f, ctx, 'n', Testctrlmask);
 	res = contextkey(t, &f, ctx, 'k', 0);
 	checkstr(t, "preedit", "k", &res.preedit);
-	ctx->purpose = Ibuspurposepassword;
+	ctx->purpose = Purposepassword;
 	memset(&res, 0, sizeof res);
 	CT_CHECK(t, !processkey(ctx, 'x', 0, text, sizeof text, &res));
 	CT_CHECK(t, !res.eaten);
diff --git a/wl.c b/wl.c
index f087504..9b1c091 100644
--- a/wl.c
+++ b/wl.c
@@ -9,16 +9,9 @@
 #include "imv2.h"
 #include "vkv1.h"
 
-/*
- * text-input-v3 content purposes whose keys the engine never sees.  IBus
- * numbers these alike but does not share them: one enum here is cheaper
- * than reaching into dat.h and ibus.c both.
- */
 enum
 {
-	Purposepassword	= 8,
-	Purposepin	= 9,
-	Maxcode		= 0x300,	/* KEY_MAX+1: what evdev can send */
+	Maxcode	= 0x300,	/* KEY_MAX+1: what evdev can send */
 };
 
 /*