diff --git a/azure-pipelines.yaml b/azure-pipelines.yaml
index 78e8000..e8e57a3 100644
--- a/azure-pipelines.yaml
+++ b/azure-pipelines.yaml
@@ -13,9 +13,11 @@ jobs:
       LLVM9:
         llvm_tag: 'llvm\@9'
         features: 'llvm-9'
+        llvm_ver: '90'
       LLVM10:
         llvm_tag: 'llvm'
         features: 'llvm-10'
+        llvm_ver: '100'
   steps:
     - script: 'brew install $(llvm_tag)'
       displayName: Brew install LLVM
@@ -24,8 +26,8 @@ jobs:
     - script: |
         export PATH=/usr/local/bin:$PATH             # Local bin (brew)
         source ~/.cargo/env
-        export LLVM_SYS_90_PREFIX=/usr/local/opt/$(llvm_tag)
-        export LLVM_CONFIG_PATH=${LLVM_SYS_90_PREFIX}/bin/llvm-config
+        export LLVM_SYS_$(llvm_ver)_PREFIX=/usr/local/opt/$(llvm_tag)
+        export LLVM_CONFIG_PATH=${LLVM_SYS_$(llvm_ver)_PREFIX}/bin/llvm-config
         cargo install just
         ./build.sh features=$(features) test
       displayName: './build.sh test'