diff --git a/var/spack/repos/builtin/packages/cprnc/package.py b/var/spack/repos/builtin/packages/cprnc/package.py
index 5d8ab89be5008e..e92919ab4aadae 100644
--- a/var/spack/repos/builtin/packages/cprnc/package.py
+++ b/var/spack/repos/builtin/packages/cprnc/package.py
@@ -22,3 +22,17 @@ class Cprnc(CMakePackage):
 
     depends_on("netcdf-fortran")
     depends_on("cmake@3:", type="build")
+
+    resource(
+        name="genf90",
+        git="https://github.com/PARALLELIO/genf90",
+        tag="genf90_200608",
+        destination="genf90-resource",
+    )
+
+    def cmake_args(self):
+        args = [
+            self.define("GENF90_PATH", join_path(self.stage.source_path, "genf90-resource/genf90"))
+        ]
+
+        return args