diff --git a/nc_cxx.cmake b/nc_cxx.cmake
index b926c72..44a6750 100644
--- a/nc_cxx.cmake
+++ b/nc_cxx.cmake
@@ -88,6 +88,10 @@ append_compile_flag("-fPIC")
 # We want a build-id so that we can attribute minidumps
 append_link_flag("-Wl,--build-id")
 
+# breakpad:XXX Our supported versions of breakpad crash when dumping symbols
+# from a DWARF5 binary. Just drop to DWARF4 for the moment.
+append_compile_flag("-gdwarf-4")
+
 append_compile_flag("-D__STDC_FORMAT_MACROS")
 
 add_definitions("-D_FILE_OFFSET_BITS=64")