diff --git a/openair2/RRC/LTE/defs_NB_IoT.h b/openair2/RRC/LTE/defs_NB_IoT.h
index 37a26086b5..c76bdea53f 100644
--- a/openair2/RRC/LTE/defs_NB_IoT.h
+++ b/openair2/RRC/LTE/defs_NB_IoT.h
@@ -148,7 +148,7 @@ typedef struct UE_RRC_INFO_NB_IoT_s {
 //Measurement Report not supported in NB-IoT
 
 #define PAYLOAD_SIZE_MAX 1024
-#define RRC_BUF_SIZE 512
+#define RRC_BUF_SIZE 1024
 #define UNDEF_SECURITY_MODE 0xff
 #define NO_SECURITY_MODE 0x20
 
diff --git a/openair2/RRC/LTE/rrc_defs.h b/openair2/RRC/LTE/rrc_defs.h
index 3d472fa931..64baf5e2ac 100644
--- a/openair2/RRC/LTE/rrc_defs.h
+++ b/openair2/RRC/LTE/rrc_defs.h
@@ -316,7 +316,7 @@ typedef enum SL_TRIGGER_e {
 #define MAX_MEAS_ID 7
 
 #define PAYLOAD_SIZE_MAX 1024
-#define RRC_BUF_SIZE 512
+#define RRC_BUF_SIZE 1024
 #define UNDEF_SECURITY_MODE 0xff
 #define NO_SECURITY_MODE 0x20
 
diff --git a/openair2/RRC/NR/nr_rrc_defs.h b/openair2/RRC/NR/nr_rrc_defs.h
index d5dfd90e72..4c7fab2fc9 100644
--- a/openair2/RRC/NR/nr_rrc_defs.h
+++ b/openair2/RRC/NR/nr_rrc_defs.h
@@ -128,7 +128,7 @@ typedef enum UE_STATE_NR_e {
 #define MAX_MEAS_ID                                   7
 
 #define PAYLOAD_SIZE_MAX                              1024
-#define RRC_BUF_SIZE                                  512
+#define RRC_BUF_SIZE                                  1024
 #define UNDEF_SECURITY_MODE                           0xff
 #define NO_SECURITY_MODE                              0x20