diff --git a/backend/coreapp/compilers.py b/backend/coreapp/compilers.py
index 247632f7e..d1b37f705 100644
--- a/backend/coreapp/compilers.py
+++ b/backend/coreapp/compilers.py
@@ -936,6 +936,18 @@ def available_platforms() -> list[Platform]:
     ' -c ${COMPILER_FLAGS} -o "${OUTPUT}" "${INPUT}"',
 )
 
+IDO71_IRIX4_CXX = IDOCompiler(
+    id="ido7.1_irix4_c++",
+    platform=N64,
+    base_compiler=IDO71,
+    language=Language.OLD_CXX,
+    cc='"${COMPILER_DIR}/cc-irix4"'
+    ' --frontend "${COMPILER_DIR}/../ido4.1"'
+    ' --cfront "${COMPILER_DIR}/../ido5.3_c++"'
+    ' --backend "${COMPILER_DIR}"'
+    ' -c ${COMPILER_FLAGS} -o "${OUTPUT}" "${INPUT}"',
+)
+
 IDO71_CXX = IDOCompiler(
     id="ido7.1_c++",
     platform=N64,
@@ -1855,6 +1867,7 @@ def available_platforms() -> list[Platform]:
     IDO60,
     IDO71,
     IDO71_IRIX4,
+    IDO71_IRIX4_CXX,
     IDO71_CXX,
     MIPS_PRO_744,
     GCC272KMC,
diff --git a/frontend/src/lib/i18n/locales/en/compilers.json b/frontend/src/lib/i18n/locales/en/compilers.json
index 9d037250e..2281a144c 100644
--- a/frontend/src/lib/i18n/locales/en/compilers.json
+++ b/frontend/src/lib/i18n/locales/en/compilers.json
@@ -104,6 +104,7 @@
     "ido5.3Pascal": "IDO 5.3 Pascal",
     "ido7.1": "IDO 7.1",
     "ido7.1_irix4": "IDO 7.1 (IRIX 4 frontend)",
+    "ido7.1_irix4_c++": "IDO 7.1 C++ (IRIX 4 cfront)",
     "ido7.1_c++": "IDO 7.1 C++",
     "ido7.1Pascal": "IDO 7.1 Pascal",