diff --git a/var/spack/repos/builtin/packages/unzip/package.py b/var/spack/repos/builtin/packages/unzip/package.py
index 8616b3630d0..f04dee4f8cd 100644
--- a/var/spack/repos/builtin/packages/unzip/package.py
+++ b/var/spack/repos/builtin/packages/unzip/package.py
@@ -28,8 +28,9 @@ def get_make_args(self):
         make_args = ["-f", join_path("unix", "Makefile")]
 
         cflags = []
-        cflags.append("-Wno-error=implicit-function-declaration")
-        cflags.append("-Wno-error=implicit-int")
+        if not self.spec.satisfies("%nvhpc"):
+            cflags.append("-Wno-error=implicit-function-declaration")
+            cflags.append("-Wno-error=implicit-int")
         cflags.append("-DLARGE_FILE_SUPPORT")
 
         make_args.append(f"LOC={' '.join(cflags)}")