diff --git a/config/CONFIG.Vx b/config/CONFIG.Vx
index b7c3b995e..7339f1b75 100644
--- a/config/CONFIG.Vx
+++ b/config/CONFIG.Vx
@@ -101,9 +101,9 @@ OP_SYS_LDLIBS =
 #--------------------------------------------------
 # Optimization flag overrides
 GCC_OPT_YES = -O2 -fstrength-reduce
-GCC_OPT_NO =
+GCC_OPT_NO = -g
 G++_OPT_YES = -O2 -fstrength-reduce
-G++_OPT_NO =
+G++_OPT_NO = -g
 
 OPT_CFLAGS = $($(ANSI)_OPT_$(VX_OPT))
 OPT_CXXFLAGS = $($(CPLUSPLUS)_OPT_$(VX_OPT))