diff --git a/book/rv32/chapter.tex b/book/rv32/chapter.tex
index 6668de5..0c5de06 100644
--- a/book/rv32/chapter.tex
+++ b/book/rv32/chapter.tex
@@ -992,7 +992,7 @@ Store Word
 \verb@m16(rs1+sx(imm))@ $\leftarrow$ \verb@rs2[31:0]@\\
 \verb@pc@ $\leftarrow$ \verb@pc+4@
 
-Store the 32-bit value in \verb@rs1@ into memory at address \verb@rs1+imm@.
+Store the 32-bit value in \verb@rs2@ into memory at address \verb@rs1+imm@.
 
 Encoding: