diff --git a/.github/workflows/containerized-ci.yml b/.github/workflows/containerized-ci.yml
index b58eacf581..42a245f98e 100644
--- a/.github/workflows/containerized-ci.yml
+++ b/.github/workflows/containerized-ci.yml
@@ -30,7 +30,7 @@ jobs:
     env:
       F90: ${{ matrix.compiler }}
       FC:  ${{ matrix.compiler }}
-      F90FLAGS: ${{ fcflags }}
+      F90FLAGS:  ${{ matrix.fcflags }}
       # Make variables:
       NFHOME: /opt/netcdf-fortran
       ATOL: 0.0