diff --git a/indra/newview/fsprimfeedauth.cpp b/indra/newview/fsprimfeedauth.cpp
index c264c3b8dc..2c7c66f60c 100644
--- a/indra/newview/fsprimfeedauth.cpp
+++ b/indra/newview/fsprimfeedauth.cpp
@@ -225,6 +225,7 @@ void FSPrimfeedAuth::beginLoginRequest()
     LLCore::HttpHeaders::ptr_t pHeader(new LLCore::HttpHeaders());
     LLCore::HttpOptions::ptr_t options(new LLCore::HttpOptions());
 
+    pHeader->append(HTTP_OUT_HEADER_USER_AGENT, FS_PF_USER_AGENT);
     pHeader->append("pf-viewer-api-key", viewer_api_key);
     pHeader->append("pf-user-uuid", user_uuid);
 
@@ -326,6 +327,7 @@ void FSPrimfeedAuth::validateRequest()
 
     // Create and populate the headers.
     LLCore::HttpHeaders::ptr_t pHeader(new LLCore::HttpHeaders());
+    pHeader->append(HTTP_OUT_HEADER_USER_AGENT, FS_PF_USER_AGENT);
     pHeader->append("Authorization", "Bearer " + mOauthToken);
     pHeader->append("pf-viewer-api-key", viewer_api_key);
     pHeader->append("pf-viewer-request-id", mRequestId);
@@ -398,6 +400,7 @@ void FSPrimfeedAuth::checkUserStatus()
 
     // Create and populate the headers.
     LLCore::HttpHeaders::ptr_t pHeader(new LLCore::HttpHeaders());
+    pHeader->append(HTTP_OUT_HEADER_USER_AGENT, FS_PF_USER_AGENT);
     pHeader->append("Authorization", "Bearer " + mOauthToken);
     pHeader->append("pf-viewer-api-key", viewer_api_key);
 
diff --git a/indra/newview/fsprimfeedconnect.cpp b/indra/newview/fsprimfeedconnect.cpp
index f6d91480a2..6c6d849152 100644
--- a/indra/newview/fsprimfeedconnect.cpp
+++ b/indra/newview/fsprimfeedconnect.cpp
@@ -119,6 +119,7 @@ void FSPrimfeedConnect::uploadPhotoCoro(const LLSD& params, LLImageFormatted* im
     LLCore::HttpHeaders::ptr_t headers(new LLCore::HttpHeaders);
     std::string token  = gSavedPerAccountSettings.getString("FSPrimfeedOAuthToken");
     std::string apiKey = gSavedSettings.getString("FSPrimfeedViewerApiKey");
+    headers->append(HTTP_OUT_HEADER_USER_AGENT, FS_PF_USER_AGENT);
     headers->append("Authorization",    "Bearer " + token);
     headers->append("pf-viewer-api-key", apiKey);
     headers->append("Content-Type",     "multipart/form-data; boundary=" + boundary);
diff --git a/indra/newview/fsprimfeedconnect.h b/indra/newview/fsprimfeedconnect.h
index 409a93faed..6ccd24c6e4 100644
--- a/indra/newview/fsprimfeedconnect.h
+++ b/indra/newview/fsprimfeedconnect.h
@@ -39,7 +39,9 @@
 #include <functional>
 
 // Coro based connector designed to interface with floater designed along the same principles as LLFloaterFlickr.cpp
-
+#ifndef FS_PF_USER_AGENT
+#define FS_PF_USER_AGENT "Firestorm-PF"
+#endif // FS_PF_USER_AGENT
 class FSPrimfeedConnect : public LLSingleton<FSPrimfeedConnect>
 {
     LLSINGLETON(FSPrimfeedConnect);