diff --git a/core/libs/prx/libSceVideoOut/include/Output.hpp b/core/libs/prx/libSceVideoOut/include/Output.hpp
index 4bac79d39..a188ee600 100644
--- a/core/libs/prx/libSceVideoOut/include/Output.hpp
+++ b/core/libs/prx/libSceVideoOut/include/Output.hpp
@@ -26,6 +26,8 @@ int APS5_VABI sceVideoOutLatencyControlWaitBeforeInput(int handle);
 int APS5_VABI sceVideoOutLatencyMeasureSetStartPoint(int handle, uint32_t point);
 int APS5_VABI sceVideoOutColorSettingsSetGamma(VideoOutColorSettings* settings, float gamma);
 int APS5_VABI sceVideoOutAdjustColor(int handle, const VideoOutColorSettings* settings);
+int APS5_VABI sceVideoOutVrrPegToFixedRate(int handle, uint64_t arg1, uint64_t arg2);
+int APS5_VABI sceVideoOutVrrUnpegFromFixedRate(int handle);
 
 }
 
diff --git a/core/libs/prx/libSceVideoOut/src/Output.cpp b/core/libs/prx/libSceVideoOut/src/Output.cpp
index bf4b18327..067e01908 100644
--- a/core/libs/prx/libSceVideoOut/src/Output.cpp
+++ b/core/libs/prx/libSceVideoOut/src/Output.cpp
@@ -8,6 +8,7 @@
 #include <cmath>
 
 #include "SceTypes.hpp"
+#include "prx/libSceVideoOut/include/Output.hpp"
 #include "prx/libc/include/General.hpp"
 #include "prx/libSceVideoOut/include/VideoOutDriver.hpp"
 
@@ -310,7 +311,7 @@ int APS5_VABI sceVideoOutVrrUnpegFromFixedRate(int handle) try {
     LibcAwaitExit_nid_postfix();
 }
 
-int APS5_VABI sceVideoOutVrrPegToFixedRate(int handle, int32_t arg1, int32_t arg2) try {
+int APS5_VABI sceVideoOutVrrPegToFixedRate(int handle, uint64_t arg1, uint64_t arg2) try {
     if (VideoOutDriver::Get().GetConfig(handle) == nullptr) {
         throw std::runtime_error(std::string(__func__) + ": VIDEO_OUT_ERROR_INVALID_HANDLE");
     }
diff --git a/core/libs/prx/libSceVideoOut/tests/Flip.cpp b/core/libs/prx/libSceVideoOut/tests/Flip.cpp
index 02ff20088..c883e240c 100644
--- a/core/libs/prx/libSceVideoOut/tests/Flip.cpp
+++ b/core/libs/prx/libSceVideoOut/tests/Flip.cpp
@@ -340,7 +340,15 @@ void testControls() {
     vrrStatus.ident = VIDEO_OUT_EVENT_VRR_STATUS;
     vrrStatus.filter = EVFILT_VIDEO_OUT;
     check(sceVideoOutGetEventId(&vrrStatus) == VIDEO_OUT_EVENT_VRR_STATUS, "VRR status event id rejected");
+    check(sceVideoOutVrrPegToFixedRate(handle, 0, 0) == 0, "VRR peg on an open handle failed");
+    check(sceVideoOutVrrUnpegFromFixedRate(handle) == 0, "VRR unpeg on an open handle failed");
+    expectFailure([&] { sceVideoOutVrrPegToFixedRate(handle, 1, 0); });
+    expectFailure([&] { sceVideoOutVrrPegToFixedRate(handle, 0, 1); });
+    expectFailure([&] { sceVideoOutVrrPegToFixedRate(handle, 0x100000000ull, 0); });
+    expectFailure([&] { sceVideoOutVrrPegToFixedRate(handle, 0, 0x100000000ull); });
     sceVideoOutClose(handle);
+    expectFailure([&] { sceVideoOutVrrPegToFixedRate(handle, 0, 0); });
+    expectFailure([&] { sceVideoOutVrrUnpegFromFixedRate(handle); });
     check(owner->GetTriggeredEvents(&event, 1) == 0, "closed port retained pending events");
     check(sceKernelDeleteEqueue(queue) == 0, "event queue deletion failed");
     LibcRunShutdown_nid_postfix();