diff --git a/packages/abstract-signer/src.ts/index.ts b/packages/abstract-signer/src.ts/index.ts
index d5322a8a..2cc41491 100644
--- a/packages/abstract-signer/src.ts/index.ts
+++ b/packages/abstract-signer/src.ts/index.ts
@@ -169,7 +169,13 @@ export abstract class Signer {
                 });
             }
 
-            if (tx.gasLimit == null) { tx.gasLimit = this.estimateGas(tx);  }
+            if (tx.gasLimit == null) {
+                tx.gasLimit = this.estimateGas(tx).catch((error) => {
+                    logger.throwError("unable to estimate gas; specify manually", Logger.errors.UNPREDICTABLE_GAS_LIMIT, {
+                        tx: tx
+                    });
+                });
+            }
             if (tx.chainId == null) { tx.chainId = this.getChainId(); }
 
             return resolveProperties(tx);