diff --git a/Source/Atmosphere/stratosphere/loader/source/oc/mtc_timing_value.hpp b/Source/Atmosphere/stratosphere/loader/source/oc/mtc_timing_value.hpp
index 3553120a..735510d9 100644
--- a/Source/Atmosphere/stratosphere/loader/source/oc/mtc_timing_value.hpp
+++ b/Source/Atmosphere/stratosphere/loader/source/oc/mtc_timing_value.hpp
@@ -40,7 +40,7 @@ namespace ams::ldr::oc {
     const std::array<u32, 10> tRAS_values  =  { 42, 36, 34, 32, 30, 28, 26, 24, 22, 20 };
     const std::array<double,    7>  tRRD_values   = { /*10.0,*/ 7.5, 6.0, 5.0, 4.0, 3.0, 2.0, 1.0 }; /* 10.0 is used for <2133mhz; do we care? */
     const std::array<u32,      11>  tRFC_values   = { 140, 130, 120, 110, 100, 90, 80, 70, 60, 50, 40 };
-    const std::array<u32,      10>  tWTR_values   = { 10, 9, 8, 7, 6, 5, 4, 3, 3, 1 };
+    const std::array<u32,      10>  tWTR_values   = { 10, 9, 8, 7, 6, 5, 4, 3, 2, 1 };
     const std::array<u32,       6>  tREFpb_values = { 3900, 5850, 7800, 11700, 15600, 99999 };
 
     const u32 BL = 16;
diff --git a/Source/Atmosphere/stratosphere/loader/source/oc/pcv/pcv_mariko.cpp b/Source/Atmosphere/stratosphere/loader/source/oc/pcv/pcv_mariko.cpp
index f4e12eb6..86ebf2af 100644
--- a/Source/Atmosphere/stratosphere/loader/source/oc/pcv/pcv_mariko.cpp
+++ b/Source/Atmosphere/stratosphere/loader/source/oc/pcv/pcv_mariko.cpp
@@ -428,7 +428,7 @@ namespace ams::ldr::oc::pcv::mariko {
 
         u32 refresh_raw = 0xFFFF;
         if (C.t8_tREFI != 6) {
-            refresh_raw = std::floor(tREFpb_values[C.t8_tREFI] / tCK_avg) - 0x40;
+            refresh_raw = CEIL(tREFpb_values[C.t8_tREFI] / tCK_avg) - 0x40;
             refresh_raw = MIN(refresh_raw, static_cast<u32>(0xFFFF));
         }