diff --git a/lib/dbi/ims.c b/lib/dbi/ims.c
index bdff0425c..dfe6afb1d 100644
--- a/lib/dbi/ims.c
+++ b/lib/dbi/ims.c
@@ -17,6 +17,8 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+#include <mongoc.h>
+
 #include "ogs-dbi.h"
 
 int ogs_dbi_msisdn_data(
diff --git a/lib/dbi/ogs-mongoc.h b/lib/dbi/ogs-mongoc.h
index 9e3b4515b..5caa37985 100644
--- a/lib/dbi/ogs-mongoc.h
+++ b/lib/dbi/ogs-mongoc.h
@@ -24,8 +24,6 @@
 #ifndef OGS_MONGOC_H
 #define OGS_MONGOC_H
 
-#include <mongoc.h>
-
 #ifdef __cplusplus
 extern "C" {
 #endif /* __cplusplus */
diff --git a/lib/dbi/session.c b/lib/dbi/session.c
index d0edb7218..ff1bbc9bc 100644
--- a/lib/dbi/session.c
+++ b/lib/dbi/session.c
@@ -17,6 +17,8 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+#include <mongoc.h>
+
 #include "ogs-dbi.h"
 
 int ogs_dbi_session_data(char *supi, ogs_s_nssai_t *s_nssai, char *dnn,
diff --git a/lib/dbi/subscription.c b/lib/dbi/subscription.c
index dfd86214f..a541c2144 100644
--- a/lib/dbi/subscription.c
+++ b/lib/dbi/subscription.c
@@ -17,6 +17,8 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+#include <mongoc.h>
+
 #include "ogs-dbi.h"
 
 int ogs_dbi_auth_info(char *supi, ogs_dbi_auth_info_t *auth_info)
diff --git a/tests/common/context.c b/tests/common/context.c
index 628d29406..0c33bae17 100644
--- a/tests/common/context.c
+++ b/tests/common/context.c
@@ -17,6 +17,8 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+#include <mongoc.h>
+
 #include "test-config-private.h"
 #include "test-common.h"
 
diff --git a/tests/common/context.h b/tests/common/context.h
index 5481defd1..e62a57841 100644
--- a/tests/common/context.h
+++ b/tests/common/context.h
@@ -24,6 +24,8 @@
 #ifndef TEST_COMMON_CONTEXT_H
 #define TEST_COMMON_CONTEXT_H
 
+#include <mongoc.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif