diff --git a/ci/unittest.py b/ci/unittest.py
index f2b9b28..d4a1511 100644
--- a/ci/unittest.py
+++ b/ci/unittest.py
@@ -35,7 +35,7 @@ def build(runner: MatrixRunner):
             "-DCPPTRACE_BUILD_TESTING=On",
             f"-DCPPTRACE_SANITIZER_BUILD={matrix['sanitizers']}",
             f"-DCPPTRACE_BUILD_TESTING_SPLIT_DWARF={matrix['split_dwarf']}",
-            f"-DCPPTRACE_BUILD_TESTING_SPLIT_DWARF={matrix['dwarf_version']}",
+            f"-DCPPTRACE_BUILD_TESTING_DWARF_VERSION={matrix['dwarf_version']}",
             f"-DCPPTRACE_USE_EXTERNAL_LIBDWARF=On",
             f"-DCPPTRACE_USE_EXTERNAL_ZSTD=On",
             f"-DCPPTRACE_USE_EXTERNAL_GTEST=On",