diff --git a/src/fastlock.cpp b/src/fastlock.cpp
index d566bb267..19375cd0e 100644
--- a/src/fastlock.cpp
+++ b/src/fastlock.cpp
@@ -293,7 +293,7 @@ extern "C" void fastlock_lock(struct fastlock *lock)
 #elif defined(__arm__)
         __asm__ __volatile__ ("yield");
 #endif
-        if ((++cloops % 0x10000) == 0)
+        if ((++cloops % 0x100000) == 0)
         {
             fastlock_sleep(lock, tid, ticketT.u, mask);
         }
diff --git a/src/fastlock_x64.asm b/src/fastlock_x64.asm
index f7ab6316e..7c9990a6d 100644
--- a/src/fastlock_x64.asm
+++ b/src/fastlock_x64.asm
@@ -45,7 +45,7 @@ fastlock_lock:
 	cmp dx, ax              # is our ticket up?
 	je .LLocked             # leave the loop
 	pause
-	add ecx, 0x10000        # Have we been waiting a long time? (oflow if we have)
+	add ecx, 0x1000         # Have we been waiting a long time? (oflow if we have)
 	                        #	1000h is set so we overflow on the 1024*1024'th iteration (like the C code)
 	jnc .LLoop              # If so, give up our timeslice to someone who's doing real work
 	# Like the compiler, you're probably thinking: "Hey! I should take these pushs out of the loop"