diff --git a/emulators/flycast.yml b/emulators/flycast.yml
index c1abd8ac..a764465a 100644
--- a/emulators/flycast.yml
+++ b/emulators/flycast.yml
@@ -68,7 +68,7 @@ files:
     hle_fallback: true
     size: 2097152
     note: "Dreamcast boot ROM. HLE BIOS (reios) used as fallback. Code searches prefix + boot.bin, boot.bin.bin, bios.bin, bios.bin.bin sequentially."
-    source_ref: "upstream core/hw/holly/sb_mem.cpp:219, 55-57"
+    source_ref: "source core/hw/holly/sb_mem.cpp:219, 55-57"
 
   - name: "dc_nvmem.bin"
     path: "dc/dc_nvmem.bin"
@@ -78,14 +78,14 @@ files:
     hle_fallback: true
     size: 131072
     note: "Dreamcast flash memory / NVRAM. Created if not found. Code searches prefix + nvmem.bin, flash_wb.bin, flash.bin, flash.bin.bin sequentially."
-    source_ref: "upstream core/hw/holly/sb_mem.cpp:231, 196-213"
+    source_ref: "source core/hw/holly/sb_mem.cpp:231, 196-213"
 
   - name: "font.bin"
     path: "dc/font.bin"
     system: sega-dreamcast
     required: false
     note: "Dreamcast system font for HLE BIOS text rendering. Built-in font used as fallback."
-    source_ref: "upstream core/reios/reios.cpp:737-753"
+    source_ref: "source core/reios/reios.cpp:737-753"
 
   # -------------------------------------------------------
   # Sega NAOMI
@@ -97,7 +97,7 @@ files:
     required: false
     size: 2097152
     note: "NAOMI boot ROM (flat binary). Alternative to naomi.zip. epr-21576d.bin is searched without prefix."
-    source_ref: "upstream core/hw/holly/sb_mem.cpp:219, 58-59"
+    source_ref: "source core/hw/holly/sb_mem.cpp:219, 58-59"
 
   - name: "naomi.zip"
     path: "dc/naomi.zip"
@@ -169,7 +169,7 @@ files:
     system: sega-atomiswave
     required: true
     note: "Atomiswave system BIOS archive (MAME format). Contains bios0.ic23 (Sammy, 128 KB)."
-    source_ref: "upstream core/hw/naomi/naomi_roms.h:87-94"
+    source_ref: "source core/hw/naomi/naomi_roms.h:87-94"
     contents:
       - name: "bios0.ic23"
         size: 131072
diff --git a/emulators/lrps2.yml b/emulators/lrps2.yml
index facc380a..8aad8b6b 100644
--- a/emulators/lrps2.yml
+++ b/emulators/lrps2.yml
@@ -57,7 +57,7 @@ files:
     required: false
     max_size: 4194304
     description: "DVD player ROM"
-    source_ref: "upstream pcsx2/ps2/BiosTools.cpp:189-229, 339"
+    source_ref: "source pcsx2/ps2/BiosTools.cpp:189-229, 339"
     note: >
       DVD player ROM. Tries <biospath>.rom1 (appended) then <biosbase>.rom1
       (extension replaced). Silently skipped if not found.
@@ -67,7 +67,7 @@ files:
     required: false
     max_size: 524288
     description: "Chinese ROM extension"
-    source_ref: "upstream pcsx2/ps2/BiosTools.cpp:189-229, 340"
+    source_ref: "source pcsx2/ps2/BiosTools.cpp:189-229, 340"
     note: >
       Chinese region ROM extension. Same naming convention as rom1.
       Only present on Chinese region consoles.
@@ -78,7 +78,7 @@ files:
     hle_fallback: true
     size: 1024
     description: "NVRAM / EEPROM data"
-    source_ref: "upstream pcsx2/CDVD/CDVD.cpp:196-227"
+    source_ref: "source pcsx2/CDVD/CDVD.cpp:196-227"
     note: >
       Console EEPROM data (language, timezone, region, iLink ID, OSD settings).
       Path derived from BIOS path with extension replaced to .nvm.
@@ -90,7 +90,7 @@ files:
     hle_fallback: true
     size: 4
     description: "Mechacon version"
-    source_ref: "upstream pcsx2/CDVD/CDVD.cpp:229-245"
+    source_ref: "source pcsx2/CDVD/CDVD.cpp:229-245"
     note: >
       Mechacon (disc drive controller) version as u32.
       Auto-created with default 0x00020603 if missing.
diff --git a/emulators/mesence.yml b/emulators/mesence.yml
index 16b48963..0ea80bc6 100644
--- a/emulators/mesence.yml
+++ b/emulators/mesence.yml
@@ -621,7 +621,7 @@ files:
     validation: [size]
     sha256: "990bf1956f10207d8781b619eb74f89b00d921c8d45c95c334c16c8cceca09ad,fb4a898eb93b19b36773d87a6c70eb28f981b2686bebdd2d431b05dcdf9cffd4"
     note: "ColecoVision BIOS, NTSC or PAL console dump. The system boots through it, and games cannot start without it."
-    source_ref: "source Core/SMS/SmsConsole.cpp:71-74, source Core/Shared/FirmwareHelper.h:381-398, upstream UI/Interop/FirmwareTypeExtensions.cs:70"
+    source_ref: "source Core/SMS/SmsConsole.cpp:71-74, source Core/Shared/FirmwareHelper.h:381-398, source UI/Interop/FirmwareTypeExtensions.cs:70"
 
   # -------------------------------------------------------
   # WonderSwan (standalone only: UseBootRom is never set by the libretro port)