diff --git a/src/db.cc b/src/db.cc
index 734cc37..b419d07 100644
--- a/src/db.cc
+++ b/src/db.cc
@@ -7,10 +7,17 @@
 #include <stdlib.h>
 #include <string.h>
 
+typedef struct FileList {
+    XList xlist;
+    struct FileList* next;
+} FileList;
+
+static int _db_list_compare(const void* p1, const void* p2);
+
 // Generic file progress report handler.
 //
 // 0x51DEEC
-FileReadProgressHandler* gFileReadProgressHandler = NULL;
+static FileReadProgressHandler* gFileReadProgressHandler = NULL;
 
 // Bytes read so far while tracking progress.
 //
@@ -18,15 +25,15 @@ FileReadProgressHandler* gFileReadProgressHandler = NULL;
 // and this value resets to zero.
 //
 // 0x51DEF0
-int gFileReadProgressBytesRead = 0;
+static int gFileReadProgressBytesRead = 0;
 
 // The number of bytes to read between calls to progress handler.
 //
 // 0x673040
-int gFileReadProgressChunkSize;
+static int gFileReadProgressChunkSize;
 
 // 0x673044
-FileList* gFileListHead;
+static FileList* gFileListHead;
 
 // Opens file database.
 //
diff --git a/src/db.h b/src/db.h
index 6d4ce6e..f6206a6 100644
--- a/src/db.h
+++ b/src/db.h
@@ -10,17 +10,6 @@ typedef XFile File;
 typedef void FileReadProgressHandler();
 typedef char* StrdupProc(const char* string);
 
-typedef struct FileList {
-    XList xlist;
-    struct FileList* next;
-} FileList;
-
-extern FileReadProgressHandler* gFileReadProgressHandler;
-extern int gFileReadProgressBytesRead;
-
-extern int gFileReadProgressChunkSize;
-extern FileList* gFileListHead;
-
 int dbOpen(const char* filePath1, int a2, const char* filePath2, int a4);
 int _db_current(int a1);
 bool _db_total();
@@ -75,6 +64,5 @@ void _db_register_mem(MallocProc* mallocProc, StrdupProc* strdupProc, FreeProc*
 int fileGetSize(File* stream);
 void fileSetReadProgressHandler(FileReadProgressHandler* handler, int size);
 void _db_enable_hash_table_();
-int _db_list_compare(const void* p1, const void* p2);
 
 #endif /* DB_H */