diff --git a/var/spack/repos/builtin/packages/superlu-dist/package.py b/var/spack/repos/builtin/packages/superlu-dist/package.py
index ce3dd2f6383..b87c5062789 100644
--- a/var/spack/repos/builtin/packages/superlu-dist/package.py
+++ b/var/spack/repos/builtin/packages/superlu-dist/package.py
@@ -129,6 +129,8 @@ def flag_handler(self, name, flags):
             flags.append(self.compiler.cxx11_flag)
         if name == "cflags" and "%pgi" not in self.spec:
             flags.append("-std=c99")
+        if name == "cflags" and self.spec.satisfies("%oneapi"):
+            flags.append("-Wno-error=implicit-function-declaration")
         return (None, None, flags)
 
     examples_src_dir = "EXAMPLE"