diff --git a/src/liblsquic/boringssl/CMakeLists.txt b/src/liblsquic/boringssl/CMakeLists.txt
index 39352d684..cc0f9470f 100644
--- a/src/liblsquic/boringssl/CMakeLists.txt
+++ b/src/liblsquic/boringssl/CMakeLists.txt
@@ -112,12 +112,6 @@ if(CMAKE_COMPILER_IS_GNUCXX OR CLANG)
     # See http://llvm.org/viewvc/llvm-project?view=revision&revision=319116
     set(C_CXX_FLAGS "${C_CXX_FLAGS} -W3 -Wno-unused-parameter -fmsc-version=1900")
   else()
-    if(EMSCRIPTEN)
-      # emscripten's emcc/clang does not accept the "-ggdb" flag.
-      set(C_CXX_FLAGS "${C_CXX_FLAGS} -g")
-    else()
-      set(C_CXX_FLAGS "${C_CXX_FLAGS} -ggdb")
-    endif()
 
     set(C_CXX_FLAGS "${C_CXX_FLAGS} -Wall -fvisibility=hidden -fno-common")
   endif()
@@ -271,8 +265,6 @@ if(CFI)
   # We use Chromium's copy of clang, which requires -fuse-ld=lld if building
   # with -flto. That, in turn, can't handle -ggdb.
   set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fuse-ld=lld")
-  string(REPLACE "-ggdb" "-g" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
-  string(REPLACE "-ggdb" "-g" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
   # -flto causes object files to contain LLVM bitcode. Mixing those with
   # assembly output in the same static library breaks the linker.
   set(OPENSSL_NO_ASM "1")