diff --git a/src/pcu_main.cpp b/src/pcu_main.cpp
index f66c631..2d86cda 100644
--- a/src/pcu_main.cpp
+++ b/src/pcu_main.cpp
@@ -189,8 +189,8 @@
 	bts->cs_adj_lower_limit = 10; /* Increase CS if the error rate is below */
 	bts->max_cs_ul = 4;
 	bts->max_cs_dl = 4;
-	bts->max_mcs_ul = 4;
-	bts->max_mcs_dl = 4;
+	bts->max_mcs_ul = MAX_GPRS_CS;
+	bts->max_mcs_dl = MAX_GPRS_CS;
 	/* CS-1 to CS-4 */
 	bts->cs_lqual_ranges[0].low = -256;
 	bts->cs_lqual_ranges[0].high = 6;