diff --git a/libs/freetdm/src/include/freetdm.h b/libs/freetdm/src/include/freetdm.h
index 1a764b5489..ca16219e49 100755
--- a/libs/freetdm/src/include/freetdm.h
+++ b/libs/freetdm/src/include/freetdm.h
@@ -57,7 +57,7 @@
 #define FTDM_MAX_SPANS_INTERFACE 128
 
 /*! \brief Max number of channels per hunting group */
-#define FTDM_MAX_CHANNELS_GROUP 1024
+#define FTDM_MAX_CHANNELS_GROUP 2048
 
 /*! \brief Max number of groups */
 #define FTDM_MAX_GROUPS_INTERFACE FTDM_MAX_SPANS_INTERFACE