diff --git a/src/uxn.c b/src/uxn.c
index 66fea83..b139962 100644
--- a/src/uxn.c
+++ b/src/uxn.c
@@ -48,8 +48,8 @@ void op_lts(Uxn *u) { Uint8 a = pop8(u->src), b = pop8(u->src); push8(u->src, (S
 void op_jmp(Uxn *u) { Uint8 a = pop8(u->src); u->ram.ptr += (Sint8)a; }
 void op_jsr(Uxn *u) { Uint8 a = pop8(u->src); push16(u->dst, u->ram.ptr); u->ram.ptr += (Sint8)a; }
 /* Memory */
-void op_pek(Uxn *u) { Uint16 a = pop8(u->src); push8(u->src, mempeek8(u, a)); }
-void op_pok(Uxn *u) { Uint16 a = pop8(u->src); Uint8 b = pop8(u->src); mempoke8(u, a, b); }
+void op_pek(Uxn *u) { Uint8 a = pop8(u->src); push8(u->src, mempeek8(u, a)); }
+void op_pok(Uxn *u) { Uint8 a = pop8(u->src); Uint8 b = pop8(u->src); mempoke8(u, a, b); }
 void op_ldr(Uxn *u) { Uint8 a = pop8(u->src); push16(u->src, mempeek16(u, a)); }
 void op_str(Uxn *u) { Uint8 a = pop8(u->src); Uint16 b = pop16(u->src); mempoke16(u, a, b); }
 void op_cln(Uxn *u) { push8(u->src, peek8(u->dst, 0)); }