diff --git a/accounts/abi/unpack.go b/accounts/abi/unpack.go
index 800789295c19..0de99cd2b68c 100644
--- a/accounts/abi/unpack.go
+++ b/accounts/abi/unpack.go
@@ -123,7 +123,7 @@ func forEachUnpack(t Type, output []byte, start, size int) (interface{}, error)
 		return nil, fmt.Errorf("cannot marshal input to array, size is negative (%d)", size)
 	}
 	if start+32*size > len(output) {
-		return nil, fmt.Errorf("abi: cannot marshal in to go array: offset %d would go over slice boundary (len=%d)", len(output), start+32*size)
+		return nil, fmt.Errorf("abi: cannot marshal into go array: offset %d would go over slice boundary (len=%d)", len(output), start+32*size)
 	}
 
 	// this value will become our slice or our array, depending on the type