diff --git a/var/spack/repos/builtin/packages/g2/package.py b/var/spack/repos/builtin/packages/g2/package.py
index 1d47e4ee3b89c..b86abbb065ef0 100644
--- a/var/spack/repos/builtin/packages/g2/package.py
+++ b/var/spack/repos/builtin/packages/g2/package.py
@@ -59,6 +59,12 @@ def cmake_args(self):
 
         return args
 
+    # GNU compiler is complaining if not using -fno-range-check argument
+    def flag_handler(self, name, flags):
+        if name == "fflags" and self.compiler.fc.endswith("gfortran"):
+            flags.append("-fno-range-check")
+        return (None, None, flags)
+
     def setup_run_environment(self, env):
         precisions = (
             self.spec.variants["precision"].value if self.spec.satisfies("@3.4.6:") else ("4", "d")