diff --git a/openair2/ENB_APP/enb_config.c b/openair2/ENB_APP/enb_config.c
index 5b95f968dfed0f78ae04ba2c1c6417ff228505fd..1989734f88b6a957629e305b4171f2a53f02f7f5 100755
--- a/openair2/ENB_APP/enb_config.c
+++ b/openair2/ENB_APP/enb_config.c
@@ -70,7 +70,7 @@ int enb_config_init(char* lib_config_file_name_pP) {
   const char*       default_drx;
   const char*       frame_type;
   const char*       prefix_type;
-  long int          downlink_frequency;
+  long long int     downlink_frequency;
   long int          uplink_frequency_offset;
   char*             ipv4;
   char*             ipv6;
@@ -204,10 +204,10 @@ int enb_config_init(char* lib_config_file_name_pP) {
                       g_enb_properties[enb_properties_index]->prefix_type = NORMAL; // Default prefix type
                   }
 
-                  if(config_setting_lookup_int(setting_enb, ENB_CONFIG_STRING_DOWNLINK_FREQUENCY, &downlink_frequency)) {
+                  if(config_setting_lookup_int64(setting_enb, ENB_CONFIG_STRING_DOWNLINK_FREQUENCY, &downlink_frequency)) {
                       g_enb_properties[enb_properties_index]->downlink_frequency = downlink_frequency;
                   } else {
-                      g_enb_properties[enb_properties_index]->downlink_frequency = 2680000000; // Default downlink frequency
+                      g_enb_properties[enb_properties_index]->downlink_frequency = 2680000000UL; // Default downlink frequency
                   }
 
                   if(config_setting_lookup_int(setting_enb, ENB_CONFIG_STRING_UPLINK_FREQUENCY_OFFSET, &uplink_frequency_offset)) {
diff --git a/openair2/ENB_APP/enb_config.h b/openair2/ENB_APP/enb_config.h
index f58c0d6104c6835e27b644a3891251c0b4043ca8..89d18d9ec234bc7bc9452f26f65d71a7325a5386 100755
--- a/openair2/ENB_APP/enb_config.h
+++ b/openair2/ENB_APP/enb_config.h
@@ -99,7 +99,7 @@ typedef struct Enb_properties_s {
     lte_frame_type_t    frame_type;
     lte_prefix_type_t   prefix_type;
     uint32_t            downlink_frequency;
-    uint32_t            uplink_frequency_offset;
+    int32_t             uplink_frequency_offset;
 
     /* Nb of MME to connect to */
     uint8_t             nb_mme;