diff --git a/sesman/chansrv/input.h b/sesman/chansrv/input.h
index 1062d886..dd18502a 100644
--- a/sesman/chansrv/input.h
+++ b/sesman/chansrv/input.h
@@ -16,6 +16,7 @@
  * limitations under the License.
  *
  */
+#ifdef XRDP_IBUS
 
 #if !defined(INPUT_H)
 #define INPUT_H
@@ -32,4 +33,6 @@ xrdp_input_unicode_init();
 int
 xrdp_input_unicode_destory();
 
+#endif
+
 #endif
\ No newline at end of file
diff --git a/sesman/chansrv/input_ibus.c b/sesman/chansrv/input_ibus.c
index cffe0667..44dc4a70 100644
--- a/sesman/chansrv/input_ibus.c
+++ b/sesman/chansrv/input_ibus.c
@@ -17,6 +17,8 @@
  * limitations under the License.
  */
 
+#ifdef XRDP_IBUS
+
 #if defined(HAVE_CONFIG_H)
 #include <config_ac.h>
 #endif
@@ -245,4 +247,6 @@ xrdp_input_unicode_init()
     }
 
     return 1;
-}
\ No newline at end of file
+}
+
+#endif
\ No newline at end of file