diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 80882c89..a0a6036e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -97,9 +97,10 @@ fedora/address-sanitizer:
   script:
   - mkdir -p obj && cd obj && cmake
     -DCMAKE_BUILD_TYPE=AddressSanitizer
+    -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++
     -DPICKY_DEVELOPER=ON
     -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON -DWITH_PCAP=ON
-    -DUNIT_TESTING=ON .. &&
+    -DUNIT_TESTING=ON -DFUZZ_TESTING=ON .. &&
     make -j$(nproc) && ctest --output-on-failure
   tags:
   - shared
@@ -413,8 +414,8 @@ tumbleweed/openssl_1.1.x/x86_64/clang:
     -DPICKY_DEVELOPER=ON
     -DWITH_SFTP=ON -DWITH_SERVER=ON -DWITH_ZLIB=ON -DWITH_PCAP=ON
     -DKRB5_CONFIG=/usr/lib/mit/bin/krb5-config
-    -DUNIT_TESTING=ON -DCLIENT_TESTING=ON -DSERVER_TESTING=ON
-    -DFUZZ_TESTING=ON .. &&
+    -DUNIT_TESTING=ON
+    -DCLIENT_TESTING=ON -DSERVER_TESTING=ON .. &&
     make -j$(nproc) && ctest --output-on-failure
   tags:
   - shared