diff --git a/master.cfg b/master.cfg
index 0d4b4a4..e6ec065 100644
--- a/master.cfg
+++ b/master.cfg
@@ -1010,8 +1010,8 @@ The parameters of the class are:
         factory.BuildFactory.__init__ (self)
 
         # Default CFLAGS/CXXFLAGS that are always passed to "configure".
-        default_CFLAGS = "-D_GLIBCXX_DEBUG"
-        default_CXXFLAGS = "-D_GLIBCXX_DEBUG"
+        default_CFLAGS = "-g -D_GLIBCXX_DEBUG"
+        default_CXXFLAGS = "-g -D_GLIBCXX_DEBUG"
 
         self.architecture_triplet = architecture_triplet