diff --git a/app/app.go b/app/app.go
index d0426689..5abe9610 100644
--- a/app/app.go
+++ b/app/app.go
@@ -7,6 +7,7 @@ import (
 	"math/big"
 	"os"
 	"path/filepath"
+	"strconv"
 
 	"github.com/spf13/cast"
 
@@ -589,6 +590,12 @@ func NewApp(
 		panic(err)
 	}
 
+	if maxSize := os.Getenv("MAX_WASM_SIZE"); maxSize != "" {
+		// https://github.com/CosmWasm/wasmd#compile-time-parameters
+		val, _ := strconv.ParseInt(maxSize, 10, 32)
+		wasmtypes.MaxWasmSize = int(val) // default 819200 (800 * 1024)
+	}
+
 	/* =================================================== */
 	/*                  TRANSFER STACK                     */
 	/* =================================================== */