diff --git a/src/libsysprof/sysprof-elf-symbol-resolver.c b/src/libsysprof/sysprof-elf-symbol-resolver.c
index 15075d10..de1a4b7f 100644
--- a/src/libsysprof/sysprof-elf-symbol-resolver.c
+++ b/src/libsysprof/sysprof-elf-symbol-resolver.c
@@ -172,6 +172,12 @@ guess_tag (SysprofElfSymbolResolver *self,
       if (strstr (map->filename, "/libgobject-2.0."))
         tag = g_quark_from_static_string ("GObject");
 
+      else if (strstr (map->filename, "/libc.so.6"))
+        tag = g_quark_from_static_string ("libc");
+
+      else if (strstr (map->filename, "/libstdc++.so.6"))
+        tag = g_quark_from_static_string ("stdc++");
+
       else if (strstr (map->filename, "/libglib-2.0."))
         tag = g_quark_from_static_string ("GLib");