diff --git a/lib/spack/spack/compilers/cce.py b/lib/spack/spack/compilers/cce.py
index eee78f54559..2bc00ec7f56 100644
--- a/lib/spack/spack/compilers/cce.py
+++ b/lib/spack/spack/compilers/cce.py
@@ -89,6 +89,11 @@ def cxx14_flag(self):
             return "-std=c++14"
         return "-h std=c++14"
 
+    @property
+    def cxx17_flag(self):
+        if self.is_clang_based:
+            return "-std=c++17"
+
     @property
     def c99_flag(self):
         if self.is_clang_based: