diff --git a/src/uxn.c b/src/uxn.c
index 7ca6ded..735fd05 100644
--- a/src/uxn.c
+++ b/src/uxn.c
@@ -19,7 +19,7 @@ WITH REGARD TO THIS SOFTWARE.
 #define PUSH1(y)     { if(s->ptr == 0xff) HALT(2) s->dat[s->ptr++] = (y); }
 #define PUSH2(y)     { if((tsp = s->ptr) >= 0xfe) HALT(2) t = (y); POKE2(&s->dat[tsp], t); s->ptr = tsp + 2; }
 #define PUSHx(y)     { if(m2) { PUSH2(y) } else { PUSH1(y) } }
-#define PUSHxx(y, z) { if(m2) { PUSH2(y) PUSH2(z) } else { PUSH1(y) PUSH1(z) } }
+#define PUSHxx(y, z) { if(m2) { PUSH2(y) PUSH2(z) } else { PUSH2(y << 8 | z) } }
 #define POP1(o)      { if(*sp == 0x00) HALT(1) o = s->dat[--*sp]; }
 #define POP2(o)      { if((tsp = *sp) <= 0x01) HALT(1) o = PEEK2(&s->dat[tsp - 2]); *sp = tsp - 2; }
 #define POPx(o)      { if(m2) { POP2(o) } else { POP1(o) } }