diff --git a/Source/Threading/Primitives/SMTYield.hpp b/Source/Threading/Primitives/SMTYield.hpp
index d82f7675..de772458 100644
--- a/Source/Threading/Primitives/SMTYield.hpp
+++ b/Source/Threading/Primitives/SMTYield.hpp
@@ -77,7 +77,7 @@ static auline unsigned char __tpause(unsigned int __control, unsigned long long
     __asm__ volatile(".byte 0x66, 0x0F, 0xAE, 0xF1\n"
                      "setb  %0"
                      : "=r"(flag)
-                     : "a"(uTimeHi),
+                     : "a"(uTimeLo),
                        "d"(uTimeHi),
                        "c"(__control)
                      : );