diff --git a/Makefile b/Makefile
index 4b625767..40793636 100644
--- a/Makefile
+++ b/Makefile
@@ -433,7 +433,7 @@ $(SQLITE_OBJS): CFLAGS += \
 	-DSQLITE_OMIT_TCL_VARIABLE \
 	-DSQLITE_PRAGMA_DEFAULT_WAL_SYNCHRONOUS=1 \
 	-DSQLITE_SECURE_DELETE \
-	-DSQLITE_THREADSAFE=0 \
+	-DSQLITE_THREADSAFE=2 \
 	-DSQLITE_UNTESTABLE \
 	-DSQLITE_USE_ALLOCA \
 	-DHAVE_ISNAN \