--- a/testing/mozharness/mozharness/mozilla/building/buildbase.py
+++ b/testing/mozharness/mozharness/mozilla/building/buildbase.py
@@ -416,17 +416,17 @@ class BuildOptionParser(object):
         'cross-fuzzing-asan': 'builds/releng_sub_%s_configs/%s_cross_fuzzing_asan.py',
         'cross-artifact': 'builds/releng_sub_%s_configs/%s_cross_artifact.py',
         'debug': 'builds/releng_sub_%s_configs/%s_debug.py',
         'fuzzing-debug': 'builds/releng_sub_%s_configs/%s_fuzzing_debug.py',
         'asan-and-debug': 'builds/releng_sub_%s_configs/%s_asan_and_debug.py',
         'asan-tc-and-debug': 'builds/releng_sub_%s_configs/%s_asan_tc_and_debug.py',
         'stat-and-debug': 'builds/releng_sub_%s_configs/%s_stat_and_debug.py',
         'code-coverage': 'builds/releng_sub_%s_configs/%s_code_coverage.py',
-        'code-coverage-opt': 'builds/releng_sub_%s_configs/%s_code_coverage-opt.py',
+        'code-coverage-opt': 'builds/releng_sub_%s_configs/%s_code_coverage_opt.py',
         'source': 'builds/releng_sub_%s_configs/%s_source.py',
         'noopt-debug': 'builds/releng_sub_%s_configs/%s_noopt_debug.py',
         'api-16-gradle-dependencies': 'builds/releng_sub_%s_configs/%s_api_16_gradle_dependencies.py',
         'api-16': 'builds/releng_sub_%s_configs/%s_api_16.py',
         'api-16-artifact': 'builds/releng_sub_%s_configs/%s_api_16_artifact.py',
         'api-16-debug': 'builds/releng_sub_%s_configs/%s_api_16_debug.py',
         'api-16-debug-artifact': 'builds/releng_sub_%s_configs/%s_api_16_debug_artifact.py',
         'api-16-gradle': 'builds/releng_sub_%s_configs/%s_api_16_gradle.py',