diff --git a/README.md b/README.md
index 75f5567..2ebbc34 100644
--- a/README.md
+++ b/README.md
@@ -33,6 +33,7 @@ FUTURE TODO: better documentation of API and some internal details
 ### SQLite build flags
 
 - `-DSQLITE_THREADSAFE=1`
+- `-DSQLITE_DEFAULT_SYNCHRONOUS=3`
 - `-DSQLITE_DEFAULT_MEMSTATUS=0`
 - `-DSQLITE_OMIT_DECLTYPE`
 - `-DSQLITE_OMIT_DEPRECATED`
diff --git a/jni/Android.mk b/jni/Android.mk
index 79d3571..b164b4b 100644
--- a/jni/Android.mk
+++ b/jni/Android.mk
@@ -12,6 +12,7 @@ LOCAL_MODULE := sqlc-native-driver
 LOCAL_C_INCLUDES := $(LOCAL_PATH)/../sqlite-amalgamation
 
 LOCAL_CFLAGS += -DSQLITE_THREADSAFE=1
+LOCAL_CFLAGS += -DSQLITE_DEFAULT_SYNCHRONOUS=3
 LOCAL_CFLAGS += -DSQLITE_DEFAULT_MEMSTATUS=0
 LOCAL_CFLAGS += -DSQLITE_OMIT_DECLTYPE
 LOCAL_CFLAGS += -DSQLITE_OMIT_DEPRECATED