diff --git a/var/spack/repos/builtin/packages/openblas/package.py b/var/spack/repos/builtin/packages/openblas/package.py
index a105bd98f51..c06fd91203f 100644
--- a/var/spack/repos/builtin/packages/openblas/package.py
+++ b/var/spack/repos/builtin/packages/openblas/package.py
@@ -212,7 +212,7 @@ def flag_handler(self, name, flags):
         spec = self.spec
         iflags = []
         if name == "cflags":
-            if spec.satisfies("@0.3.20: %oneapi"):
+            if spec.satisfies("@0.3.20: %oneapi") or spec.satisfies("@0.3.20: %arm"):
                 iflags.append("-Wno-error=implicit-function-declaration")
         return (iflags, None, None)