diff --git a/src/database.c b/src/database.c
index 570de7d..66bf1c0 100644
--- a/src/database.c
+++ b/src/database.c
@@ -4,8 +4,10 @@
 #include <stdlib.h>
 #include <string.h>
 
+#ifdef USE_SQLITE3
 #include "config.h"
 #include "sql.h"
+#endif
 
 #ifdef USE_SQLITE3
 sqlite3 *db = nullptr;
diff --git a/src/db_get_user_by_id.c b/src/db_get_user_by_id.c
index 033ecd4..57e92f4 100644
--- a/src/db_get_user_by_id.c
+++ b/src/db_get_user_by_id.c
@@ -1,6 +1,10 @@
 #include "cJSON.h"
 #include "database.h"
+
+#ifdef USE_SQLITE3
 #include "sql.h"
+#endif
+
 #include "user.h"
 
 #ifndef USE_SQLITE3
diff --git a/src/db_get_user_by_username.c b/src/db_get_user_by_username.c
index 5f14757..2707d77 100644
--- a/src/db_get_user_by_username.c
+++ b/src/db_get_user_by_username.c
@@ -1,6 +1,10 @@
 #include "cJSON.h"
 #include "database.h"
+
+#ifdef USE_SQLITE3
 #include "sql.h"
+#endif
+
 #include "user.h"
 
 #ifndef USE_SQLITE3
diff --git a/src/db_get_user_field_by_id.c b/src/db_get_user_field_by_id.c
index 378e782..c1aeab9 100644
--- a/src/db_get_user_field_by_id.c
+++ b/src/db_get_user_field_by_id.c
@@ -1,7 +1,11 @@
 #include <pthread.h>
 
 #include "database.h"
+
+#ifdef USE_SQLITE3
 #include "sql.h"
+#endif
+
 #include "user.h"
 
 #ifndef USE_SQLITE3
diff --git a/src/db_insert_user.c b/src/db_insert_user.c
index d53d0db..e90f2b2 100644
--- a/src/db_insert_user.c
+++ b/src/db_insert_user.c
@@ -1,6 +1,10 @@
 #include "cJSON.h"
 #include "database.h"
+
+#ifdef USE_SQLITE3
 #include "sql.h"
+#endif
+
 #include "user.h"
 
 #ifndef USE_SQLITE3
diff --git a/src/file.c b/src/file.c
index d9f21db..0fd9cc0 100644
--- a/src/file.c
+++ b/src/file.c
@@ -1,6 +1,5 @@
 #include "file.h"
 
-#include <errno.h>
 #include <fcntl.h>
 #include <stdio.h>
 #include <stdlib.h>