diff --git a/core/libs/prx/libSceRazorCpu/Export.cpp b/core/libs/prx/libSceRazorCpu/Export.cpp
index fd54971af7..529be85908 100644
--- a/core/libs/prx/libSceRazorCpu/Export.cpp
+++ b/core/libs/prx/libSceRazorCpu/Export.cpp
@@ -31,7 +31,8 @@ int APS5_VABI sceRazorCpuPushMarker(const char* label, uint32_t color, uint32_t
  return 0;
 }
 
-int APS5_VABI sceRazorCpuNamedSync(void) {
+int APS5_VABI sceRazorCpuNamedSync(const char* label) {
+ (void)label;
  return 0;
 }
 
diff --git a/core/libs/tests/GuestRazorCpu.cpp b/core/libs/tests/GuestRazorCpu.cpp
index a2e64e544c..19ac107f19 100644
--- a/core/libs/tests/GuestRazorCpu.cpp
+++ b/core/libs/tests/GuestRazorCpu.cpp
@@ -8,7 +8,7 @@ int APS5_VABI sceRazorCpuJobManagerDispatch(const void* args);
 int APS5_VABI sceRazorCpuJobManagerJob(const void* args);
 int APS5_VABI sceRazorCpuJobManagerSequence(const void* args);
 int APS5_VABI sceRazorCpuPushMarker(const char* label, std::uint32_t color, std::uint32_t flags);
-int APS5_VABI sceRazorCpuNamedSync(void);
+int APS5_VABI sceRazorCpuNamedSync(const char* label);
 int APS5_VABI sceRazorCpuPushMarkerStatic(const char* name, std::uint32_t color, std::uint32_t flags);
 int APS5_VABI sceRazorCpuPopMarker(void);
 int APS5_VABI sceRazorCpuFlushOccurred(std::uint64_t* timeSpentInFlush);
@@ -28,7 +28,7 @@ int main() {
     Require(sceRazorCpuJobManagerDispatch(nullptr) == 0);
     Require(sceRazorCpuJobManagerJob(nullptr) == 0);
     Require(sceRazorCpuJobManagerSequence(nullptr) == 0);
-    Require(sceRazorCpuNamedSync() == 0);
+    Require(sceRazorCpuNamedSync("frame") == 0);
     Require(sceRazorCpuPushMarkerStatic("outer", 0x80ffffffu, 2) == 0);
     Require(sceRazorCpuPushMarkerStatic("inner", 0x80ffffffu, 2) == 0);
     Require(sceRazorCpuPopMarker() == 0);
diff --git a/docs/dev/debt/libSceRazorCpu.md b/docs/dev/debt/libSceRazorCpu.md
index 19f0f0b6d7..30115eb282 100644
--- a/docs/dev/debt/libSceRazorCpu.md
+++ b/docs/dev/debt/libSceRazorCpu.md
@@ -10,4 +10,4 @@
 - [sceRazorCpuFlushOccurred](../../../core/libs/prx/libSceRazorCpu/Export.cpp) (libSceRazorCpu) - signature and return values (1 = flush since the last call, 0 = none) from [SharpProspero](https://github.com/SvenGDK/SharpProspero); without a capture nothing is flushed, so it returns 0 and writes 0 cycles to the optional out pointer (whether the real library writes it when nothing was flushed is unknown)
 - [sceRazorCpuPushMarkerStatic, sceRazorCpuPopMarker](../../../core/libs/prx/libSceRazorCpu/Export.cpp) (libSceRazorCpu) - signatures from PPSA26344's calls; (name, color, flags) assumed for the push; both do nothing without a capture
 - [sceRazorCpuPlotValue, sceRazorCpuWriteBookmark](../../../core/libs/prx/libSceRazorCpu/Export.cpp) (libSceRazorCpu) - signatures (series, float value) and (label, optional description) from [SharpProspero](https://github.com/SvenGDK/SharpProspero), matching PPSA06320's calls; both do nothing without a capture and return 0
-- [sceRazorCpuNamedSync](../../../core/libs/prx/libSceRazorCpu/Export.cpp) (libSceRazorCpu) - NID `XCuZoBSVFG8` is named by [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/0fe263a4760dfbfa973366890061749b4af0de97/src/core/libraries/razor_cpu/razor_cpu.cpp); its stub takes no arguments and returns 0, as here without a capture. The console signature and capture behavior are unverified
+- [sceRazorCpuNamedSync](../../../core/libs/prx/libSceRazorCpu/Export.cpp) (libSceRazorCpu) - NID `XCuZoBSVFG8` is named by [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/0fe263a4760dfbfa973366890061749b4af0de97/src/core/libraries/razor_cpu/razor_cpu.cpp); the NID and a stub returning 0 come from there, but its stub declares no arguments; the `const char* label` parameter (NUL-terminated, up to 16384 bytes) comes from [SharpProspero](https://github.com/SvenGDK/SharpProspero), which documents it as the frame-boundary label. Without a capture it does nothing and returns 0; the label is not read, and the capture behavior and the real return values are unverified