diff --git a/core/libs/prx/libSceHttp/Export.cpp b/core/libs/prx/libSceHttp/Export.cpp
index 22c0d2e5e..c1ab8550f 100644
--- a/core/libs/prx/libSceHttp/Export.cpp
+++ b/core/libs/prx/libSceHttp/Export.cpp
@@ -188,6 +188,12 @@ int APS5_VABI sceHttpSetRecvTimeOut(int id, uint32_t usec) {
     return 0;
 }
 
+int APS5_VABI sceHttpSetRecvBlockSize(int id, uint32_t block_size) {
+    (void)id;
+    (void)block_size;
+    return 0;
+}
+
 int APS5_VABI sceHttpSetResponseHeaderMaxSize(int id, uint64_t header_size) {
     (void)id;
     (void)header_size;
diff --git a/core/libs/tests/GuestHttp.cpp b/core/libs/tests/GuestHttp.cpp
index 2faab2957..1a5dcc2d3 100644
--- a/core/libs/tests/GuestHttp.cpp
+++ b/core/libs/tests/GuestHttp.cpp
@@ -22,6 +22,7 @@ int APS5_VABI sceHttpsEnableOption(int, std::uint32_t);
 int APS5_VABI sceHttpsLoadCert(int, int, void*, void*, void*);
 int APS5_VABI sceHttpGetLastErrno(int, int*);
 int APS5_VABI sceHttpSetResponseHeaderMaxSize(int, std::uint64_t);
+int APS5_VABI sceHttpSetRecvBlockSize(int, std::uint32_t);
 int APS5_VABI sceHttpRedirectCacheFlush(int);
 int APS5_VABI sceHttpsUnloadCert(int);
 int APS5_VABI sceHttpsSetSslVersion(int, int);
@@ -209,6 +210,7 @@ int main() {
     Require(sceHttpsLoadCert(1, 0, nullptr, nullptr, nullptr) == 0);
     Require(sceHttpsUnloadCert(1) == 0);
     Require(sceHttpSetResponseHeaderMaxSize(1, 8192) == 0);
+    Require(sceHttpSetRecvBlockSize(1, 0x4000) == 0);
     Require(sceHttpRedirectCacheFlush(1) == 0);
     int authUserArg = 0;
     Require(sceHttpSetAuthInfoCallback(1, AuthInfo, &authUserArg) == 0);
diff --git a/docs/dev/TechnicalDebt.md b/docs/dev/TechnicalDebt.md
index 4656d0fbb..53289764a 100644
--- a/docs/dev/TechnicalDebt.md
+++ b/docs/dev/TechnicalDebt.md
@@ -36,7 +36,7 @@ Throughout the project, every function at every stage either **does exactly what
 - [sceAvPlayerSetTrickSpeed](../../core/libs/prx/libSceAvPlayer/src/Source.cpp) (libSceAvPlayer) with a negative speed runs the clock backwards but delivers no frames; when a forward speed is set again, playback resumes from the rewound time.
 - [sceRudpActivate](../../core/libs/prx/libSceRudp/Export.cpp) (libSceRudp) - there is no reliable-UDP stack on the host to activate, so it returns success without doing anything, as [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/main/src/core/libraries/rudp/rudp.cpp) does for its own `sceRudpActivate`. PPSA01325 calls it with no arguments during start-up; what the console activates, and whether it reports an error before `sceRudpInit`, is unverified
 - [ulobjmgr](../../core/libs/prx/ulobjmgr/Export.cpp) registers no object: `_sceUlobjmgrRegisterObject` always hands out id 0 and `_sceUlobjmgrUnregisterObject` releases nothing, as shadPS4 does
-- [libSceHttp](../../core/libs/prx/libSceHttp/Export.cpp) - no request reaches the network, so `sceHttpSetResponseHeaderMaxSize` has no response header to limit and `sceHttpRedirectCacheFlush` no redirect to forget; `sceHttpsUnloadCert` returns success like `sceHttpsLoadCert`, which keeps no certificate; `sceHttpSetRedirectCallback` and `sceHttpSetCookieRecvCallback` accept callbacks that are never called, `sceHttpsSetSslVersion` has no TLS connection to configure and `sceHttpsGetSslError` reports error 0 with detail 0; `sceHttpSetAuthInfoCallback` accepts a callback that is never called, as no server asks for authentication
+- [libSceHttp](../../core/libs/prx/libSceHttp/Export.cpp) - no request reaches the network, so `sceHttpSetResponseHeaderMaxSize` has no response header to limit, `sceHttpSetRecvBlockSize` (`(int id, u32 blockSize)` as in [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/main/src/core/libraries/network/http.h)) no response body to read in blocks and `sceHttpRedirectCacheFlush` no redirect to forget; `sceHttpsUnloadCert` returns success like `sceHttpsLoadCert`, which keeps no certificate; `sceHttpSetRedirectCallback` and `sceHttpSetCookieRecvCallback` accept callbacks that are never called, `sceHttpsSetSslVersion` has no TLS connection to configure and `sceHttpsGetSslError` reports error 0 with detail 0; `sceHttpSetAuthInfoCallback` accepts a callback that is never called, as no server asks for authentication
 - [sceFontGlyphDefineAttribute](../../core/libs/prx/libSceFont/src/Render.cpp) (libSceFont) checks the glyph and ignores the attribute and its value, whose meaning is unknown. PPSA01325 sets attribute 0x11 to 0 on a glyph from `sceFontGenerateCharGlyph` that it deletes unused, and draws the character with `sceFontRenderCharGlyphImageHorizontal`
 
 ### Unknown function info