diff --git a/porting/examples/linux/include/syscfg/syscfg.h b/porting/examples/linux/include/syscfg/syscfg.h
index 3ba53c20e..cfffe6388 100644
--- a/porting/examples/linux/include/syscfg/syscfg.h
+++ b/porting/examples/linux/include/syscfg/syscfg.h
@@ -723,6 +723,10 @@
 #define MYNEWT_VAL_BLE_L2CAP_ENHANCED_COC (0)
 #endif
 
+#ifndef MYNEWT_VAL_BLE_L2CAP_COC_SDU_BUFF_COUNT
+#define MYNEWT_VAL_BLE_L2CAP_COC_SDU_BUFF_COUNT (1)
+#endif
+
 #ifndef MYNEWT_VAL_BLE_L2CAP_JOIN_RX_FRAGS
 #define MYNEWT_VAL_BLE_L2CAP_JOIN_RX_FRAGS (1)
 #endif
diff --git a/porting/examples/linux_blemesh/include/syscfg/syscfg.h b/porting/examples/linux_blemesh/include/syscfg/syscfg.h
index 019cafac7..a7cc7de5d 100644
--- a/porting/examples/linux_blemesh/include/syscfg/syscfg.h
+++ b/porting/examples/linux_blemesh/include/syscfg/syscfg.h
@@ -724,6 +724,10 @@
 #define MYNEWT_VAL_BLE_L2CAP_ENHANCED_COC (0)
 #endif
 
+#ifndef MYNEWT_VAL_BLE_L2CAP_COC_SDU_BUFF_COUNT
+#define MYNEWT_VAL_BLE_L2CAP_COC_SDU_BUFF_COUNT (1)
+#endif
+
 #ifndef MYNEWT_VAL_BLE_L2CAP_JOIN_RX_FRAGS
 #define MYNEWT_VAL_BLE_L2CAP_JOIN_RX_FRAGS (1)
 #endif
diff --git a/porting/examples/nuttx/include/syscfg/syscfg.h b/porting/examples/nuttx/include/syscfg/syscfg.h
index 040a1b3d6..b257c9f91 100644
--- a/porting/examples/nuttx/include/syscfg/syscfg.h
+++ b/porting/examples/nuttx/include/syscfg/syscfg.h
@@ -723,6 +723,10 @@
 #define MYNEWT_VAL_BLE_L2CAP_ENHANCED_COC (0)
 #endif
 
+#ifndef MYNEWT_VAL_BLE_L2CAP_COC_SDU_BUFF_COUNT
+#define MYNEWT_VAL_BLE_L2CAP_COC_SDU_BUFF_COUNT (1)
+#endif
+
 #ifndef MYNEWT_VAL_BLE_L2CAP_JOIN_RX_FRAGS
 #define MYNEWT_VAL_BLE_L2CAP_JOIN_RX_FRAGS (1)
 #endif
diff --git a/porting/nimble/include/syscfg/syscfg.h b/porting/nimble/include/syscfg/syscfg.h
index 7eb0856da..6f8710be7 100644
--- a/porting/nimble/include/syscfg/syscfg.h
+++ b/porting/nimble/include/syscfg/syscfg.h
@@ -722,6 +722,10 @@
 #define MYNEWT_VAL_BLE_L2CAP_ENHANCED_COC (0)
 #endif
 
+#ifndef MYNEWT_VAL_BLE_L2CAP_COC_SDU_BUFF_COUNT
+#define MYNEWT_VAL_BLE_L2CAP_COC_SDU_BUFF_COUNT (1)
+#endif
+
 #ifndef MYNEWT_VAL_BLE_L2CAP_JOIN_RX_FRAGS
 #define MYNEWT_VAL_BLE_L2CAP_JOIN_RX_FRAGS (1)
 #endif
diff --git a/porting/npl/riot/include/syscfg/syscfg.h b/porting/npl/riot/include/syscfg/syscfg.h
index c4055db29..280fac615 100644
--- a/porting/npl/riot/include/syscfg/syscfg.h
+++ b/porting/npl/riot/include/syscfg/syscfg.h
@@ -1503,6 +1503,10 @@
 #define MYNEWT_VAL_BLE_L2CAP_ENHANCED_COC (0)
 #endif
 
+#ifndef MYNEWT_VAL_BLE_L2CAP_COC_SDU_BUFF_COUNT
+#define MYNEWT_VAL_BLE_L2CAP_COC_SDU_BUFF_COUNT (1)
+#endif
+
 #ifndef MYNEWT_VAL_BLE_L2CAP_JOIN_RX_FRAGS
 #define MYNEWT_VAL_BLE_L2CAP_JOIN_RX_FRAGS (1)
 #endif