diff --git a/src/sqlite3.zig b/src/sqlite3.zig
index 3f4c7a92e39771ab7eb7ecb927c3d3b3206290ef..9a4f119b0efec1254064c3bf00cc26d0b8fa45ec 100644
--- a/src/sqlite3.zig
+++ b/src/sqlite3.zig
@@ -111,7 +111,7 @@ pub fn nameForType(T: type) []const u8 {
     if (@typeInfo(T) == .optional) {
         return nameForType2(@typeInfo(T).optional.child);
     }
-    return nameForType2(T) ++ " not null";
+    return nameForType2(T) ++ " not null default (" ++ defaultForType(T) ++ ")";
 }
 
 pub fn nameForType2(T: type) []const u8 {
@@ -137,6 +137,28 @@ pub fn nameForType2(T: type) []const u8 {
     @compileError(@typeName(T)); // TODO
 }
 
+pub fn defaultForType(T: type) []const u8 {
+    const info = @typeInfo(T);
+    if (info == .bool) {
+        return "false";
+    }
+    if (info == .@"struct") {
+        const sinfo = info.@"struct";
+        if (@hasDecl(T, "BaseType")) return defaultForType(T.BaseType);
+        if (sinfo.layout == .@"packed") return defaultForType(sinfo.backing_integer.?);
+    }
+    if (comptime extras.isZigString(T)) {
+        return "''";
+    }
+    if (info == .int) {
+        return "0";
+    }
+    if (info == .@"enum") {
+        return defaultForType(T.BaseType);
+    }
+    @compileError(@typeName(T)); // TODO
+}
+
 pub const Pragma = struct {
     pub const TableInfo = struct {
         cid: u16,