diff --git a/CTestConfig.cmake b/CTestConfig.cmake
index 1f2b0ddc48250d622d903a3e12462d20345d9a6a..254dbd91c6c2df7073847f93cac92892f7060495 100644
--- a/CTestConfig.cmake
+++ b/CTestConfig.cmake
@@ -4,5 +4,8 @@ set(CTEST_SUBMIT_URL
     "https://cdash.opengeosys.org/submit.php?project=${CTEST_PROJECT_NAME}"
 )
 if(DEFINED ENV{CI_JOB_NAME})
-    set(BUILDNAME $ENV{CI_JOB_NAME})
+    # Bug in CDash: Remove ":", see
+    # https://github.com/Kitware/CDash/issues/1292
+    string(REPLACE ":" "" _build_name "$ENV{CI_JOB_NAME}")
+    set(BUILDNAME ${_build_name})
 endif()