diff --git a/.travis.yml b/.travis.yml
index f5418931..d35b06dd 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -106,6 +106,12 @@ matrix:
       os: linux
       dist: bionic
       addons: *clang12
+      
+    # Test clang-12.0: C++20, Build=Debug
+    - env: CLANG_VERSION=12 BUILD_TYPE=Debug CPP=20 ASAN=Off
+      os: linux
+      dist: bionic
+      addons: *clang12
                         
 
 before_script: