diff --git a/CMakeLists.txt b/CMakeLists.txt
index b9ca869..d3702b8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -167,8 +167,7 @@ function(give_options_without_warnings target)
                 -g3
                 -gdwarf
                 -fno-omit-frame-pointer
-		$<$<BOOL:${TWN_SANITIZE}>:-fstack-protector-all -fsanitize=undefined -fsanitize=address>
-                $<$<BOOL:${EMSCRIPTEN}>:-gsource-map>)
+		$<$<BOOL:${TWN_SANITIZE}>:-fstack-protector-all -fsanitize=undefined -fsanitize=address>)
 
         set(LINK_FLAGS
                 -Bsymbolic-functions