diff --git a/conf.d/isupmangler.conf.sample b/conf.d/isupmangler.conf.sample
index 27b0ce9a..96769a22 100644
--- a/conf.d/isupmangler.conf.sample
+++ b/conf.d/isupmangler.conf.sample
@@ -1,3 +1,9 @@
+; IMPORTANT!
+; This feature module is not loaded automatically, it needs a line in yate.conf:
+; [postload]
+; ${modulepath}/sig/isupmangler${modsuffix}=yes
+
+
 ; Each section in this file describe an ISUP interceptor/mangler
 ; You can add, remove or disable sections and reload to apply the changes
 
diff --git a/conf.d/sip_cnam_lnp.conf.sample b/conf.d/sip_cnam_lnp.conf.sample
index 27ff22fd..5106f230 100644
--- a/conf.d/sip_cnam_lnp.conf.sample
+++ b/conf.d/sip_cnam_lnp.conf.sample
@@ -1,3 +1,9 @@
+; IMPORTANT!
+; This feature module is not loaded automatically, it needs a line in yate.conf:
+; [postload]
+; ${modulepath}/sip/sip_cnam_lnp${modsuffix}=yes
+
+
 [priorities]
 ; These settings that are read only at first initialization!
 
diff --git a/conf.d/ss7_lnp_ansi.conf.sample b/conf.d/ss7_lnp_ansi.conf.sample
index 2d44a7a8..fb91d1d7 100644
--- a/conf.d/ss7_lnp_ansi.conf.sample
+++ b/conf.d/ss7_lnp_ansi.conf.sample
@@ -1,3 +1,9 @@
+; IMPORTANT!
+; This feature module is not loaded automatically, it needs a line in yate.conf:
+; [postload]
+; ${modulepath}/sig/ss7_lnp_ansi${modsuffix}=yes
+
+
 [general]
 
 ; priority for call.route message handler