diff --git a/doc/OPCODES b/doc/OPCODES
index c365591..fd38433 100644
--- a/doc/OPCODES
+++ b/doc/OPCODES
@@ -4,7 +4,6 @@ Operations
 Stack operations: (0x00~0x1f)
    pushn [int]          Push int
    pushr [float]        Push float (real)
-   pushs [string]       Push string
    pshcn [index]        Push int from constant list
    pshcr [index]        Push float from constant list
    pshcs [index]        Push string from constant list