diff --git a/docs/mindquantum/docs/source_en/shor_algorithm.md b/docs/mindquantum/docs/source_en/shor_algorithm.md
index 2d5271a44d8930da4e39055b1fe87b39045eaa62..5b47a0d169367e4dfdc8fd11bfe80e2f463fcd62 100644
--- a/docs/mindquantum/docs/source_en/shor_algorithm.md
+++ b/docs/mindquantum/docs/source_en/shor_algorithm.md
@@ -112,7 +112,7 @@ $$
 T_x|x\rangle \rightarrow |a^x\ mod\ N\rangle
 $$
 
-Each $T_x$ is controlled by register 1, they only works when the number stored in register 1 is $x$. Finally, there are a total of $N$ gates, and the entire circuit including these $N$ gates corresponds to the operator $U$. Note that $T_x$ is not itself a gate, since it is not a reversible operation. Therefore, only when register 2 is in the $|0\rangle$ state, the oracle can give the correct output.
+Each $T_x$ is controlled by register 1, and they only works when the number stored in register 1 is $x$. Finally, there are a total of $N$ gates, and the entire circuit including these $N$ gates corresponds to the operator $U$. Note that $T_x$ is not itself a gate, since it is not a reversible operation. Therefore, only when register 2 is in the $|0\rangle$ state, the oracle can give the correct output.
 
 The following is the compromised Oracle construction method: