diff --git a/Extension/swhttprequest.cpp b/Extension/swhttprequest.cpp
index 94c96daf..46a949d1 100644
--- a/Extension/swhttprequest.cpp
+++ b/Extension/swhttprequest.cpp
@@ -458,6 +458,54 @@ static cell_t sm_SetHTTPRequestRawPostBody(IPluginContext *pContext, const cell_
 	return pHTTP->SetHTTPRequestRawPostBody(pRequest->request, pName, reinterpret_cast<uint8_t *>(pBuffer), params[4]) ? 1 : 0;
 }
 
+static cell_t sm_SetHTTPRequestRawPostBodyFromFile(IPluginContext *pContext, const cell_t *params)
+{
+	ISteamHTTP *pHTTP;
+	SteamWorksHTTPRequest *pRequest = GetRequestPointer(pHTTP, pContext, params[1]);
+	if (pRequest == NULL)
+	{
+		return 0;
+	}
+
+	char *pContentType, *pFilePath;
+	pContext->LocalToString(params[2], &pContentType);
+	pContext->LocalToString(params[3], &pFilePath);
+
+	char szFinalPath[PLATFORM_MAX_PATH];
+	smutils->BuildPath(Path_Game, szFinalPath, sizeof(szFinalPath), "%s", pFilePath);
+
+	FILE *pInputFile = fopen(szFinalPath, "rb");
+	if (!pInputFile)
+	{
+		return pContext->ThrowNativeError("Unable to open %s for reading. errno: %d", szFinalPath, errno);
+	}
+
+	fseek(pInputFile, 0, SEEK_END);
+	uint32_t size = ftell(pInputFile);
+	fseek(pInputFile, 0, SEEK_SET);
+
+	if (size <= 0)
+	{
+		fclose(pInputFile);
+		return 0;
+	}
+
+	char *pBuffer = new char[size + 1];
+	uint32_t itemsRead = fread(pBuffer, sizeof(char), size, pInputFile);
+	fclose(pInputFile);
+
+	if (itemsRead != size)
+	{
+		delete [] pBuffer;
+		return 0;
+	}
+
+	cell_t result = pHTTP->SetHTTPRequestRawPostBody(pRequest->request, pContentType, reinterpret_cast<uint8_t *>(pBuffer), size) ? 1 : 0;
+
+	delete [] pBuffer;
+	return result;
+}
+
 static cell_t sm_GetHTTPResponseBodyCallback(IPluginContext *pContext, const cell_t *params)
 {
 	ISteamHTTP *pHTTP;
@@ -644,6 +692,7 @@ static sp_nativeinfo_t httpnatives[] = {
 	{"SteamWorks_GetHTTPDownloadProgressPct",				sm_GetHTTPDownloadProgressPct},
 	{"SteamWorks_GetHTTPRequestWasTimedOut",				sm_GetHTTPRequestWasTimedOut},
 	{"SteamWorks_SetHTTPRequestRawPostBody",				sm_SetHTTPRequestRawPostBody},
+	{"SteamWorks_SetHTTPRequestRawPostBodyFromFile",		sm_SetHTTPRequestRawPostBodyFromFile},
 	{"SteamWorks_GetHTTPResponseBodyCallback",				sm_GetHTTPResponseBodyCallback},
 	{"SteamWorks_WriteHTTPResponseBodyToFile",				sm_WriteHTTPResponseBodyToFile},
 	{"SteamWorks_SendHTTPRequestAndStreamResponse",			sm_SendHTTPRequestAndStreamResponse},
diff --git a/Pawn/includes/SteamWorks.inc b/Pawn/includes/SteamWorks.inc
index ecae2478..94913dea 100644
--- a/Pawn/includes/SteamWorks.inc
+++ b/Pawn/includes/SteamWorks.inc
@@ -281,6 +281,7 @@ native bool:SteamWorks_GetHTTPStreamingResponseBodyData(Handle:hRequest, cOffset
 native bool:SteamWorks_GetHTTPDownloadProgressPct(Handle:hRequest, &Float:percent);
 native bool:SteamWorks_GetHTTPRequestWasTimedOut(Handle:hRequest, &bool:bWasTimedOut);
 native bool:SteamWorks_SetHTTPRequestRawPostBody(Handle:hRequest, const String:sContentType[], const String:sBody[], bodylen);
+native bool:SteamWorks_SetHTTPRequestRawPostBodyFromFile(Handle:hRequest, const String:sContentType[], const String:sFileName[]);
 
 funcenum SteamWorksHTTPBodyCallback
 {
@@ -372,6 +373,7 @@ public __ext_SteamWorks_SetNTVOptional()
 	MarkNativeAsOptional("SteamWorks_GetHTTPStreamingResponseBodyData");
 	MarkNativeAsOptional("SteamWorks_GetHTTPDownloadProgressPct");
 	MarkNativeAsOptional("SteamWorks_SetHTTPRequestRawPostBody");
+	MarkNativeAsOptional("SteamWorks_SetHTTPRequestRawPostBodyFromFile");
 
 	MarkNativeAsOptional("SteamWorks_GetHTTPResponseBodyCallback");
 	MarkNativeAsOptional("SteamWorks_WriteHTTPResponseBodyToFile");