diff --git a/src/hooks/useWeb3.tsx b/src/hooks/useWeb3.tsx
index 714ece764..8af4d43ae 100644
--- a/src/hooks/useWeb3.tsx
+++ b/src/hooks/useWeb3.tsx
@@ -236,6 +236,23 @@ export function Web3ContextProvider({ children }: { children: ReactNode | ReactN
                     params[0] = { ...params[0], ...gasSettingsForChain }
                 }
             }
+            if (
+                method === 'eth_getCode' &&
+                address &&
+                typeof params?.[0] === 'string' &&
+                params[0].toLowerCase() === address.toLowerCase()
+            ) {
+                const code = await webprovider.jsonRpcFetchFunc(method, params)
+                // EIP-7702 delegated EOAs (e.g. MetaMask Smart Accounts on Celo) return a 23-byte
+                // delegation designator (`0xef0100` + 20-byte target address). Per EIP-3541, deployed
+                // smart contracts (such as Gnosis Safe) cannot have bytecode starting with `0xef`.
+                // Returning `'0x'` prevents `@usedapp/core` from misclassifying EIP-7702 EOAs as
+                // Gnosis Safe contracts and calling `nonce()` on them before transaction signing.
+                if (typeof code === 'string' && /^0xef0100[0-9a-fA-F]{40}$/.test(code)) {
+                    return '0x'
+                }
+                return code
+            }
             return webprovider.jsonRpcFetchFunc(method, params)
         }
     }
@@ -271,3 +288,4 @@ export function Web3ContextProvider({ children }: { children: ReactNode | ReactN
         </GdSdkContext.Provider>
     )
 }
+