diff --git a/configs/sites/tier1/gaea-c5/compilers.yaml b/configs/sites/tier1/gaea-c5/compilers.yaml
index e60d7fece..ad1fd416d 100644
--- a/configs/sites/tier1/gaea-c5/compilers.yaml
+++ b/configs/sites/tier1/gaea-c5/compilers.yaml
@@ -23,4 +23,16 @@ compilers:
         # which confuses some packages.
         CONFIG_SITE: ''
     extra_rpaths: []
-# Todo: Define gcc compiler 10.3.0 for Intel backend (ecflow)
+- compiler:
+    spec: gcc@12.2.0
+    paths:
+      cc: /opt/cray/pe/gcc/12.2.0/bin/gcc
+      cxx: /opt/cray/pe/gcc/12.2.0/bin/g++
+      f77: /opt/cray/pe/gcc/12.2.0/bin/gfortran
+      fc:  /opt/cray/pe/gcc/12.2.0/bin/gfortran
+    flags: {}
+    operating_system: sles15
+    modules:
+    - gcc/12.2.0
+    environment: {}
+    extra_rpaths: []