diff --git a/libsrc/Makefile b/libsrc/Makefile
index 0873d019f..cf7389d51 100644
--- a/libsrc/Makefile
+++ b/libsrc/Makefile
@@ -131,8 +131,8 @@ $(TARGETS): | ../lib
 
 else # TARGET
 
-CA65FLAGS =
-CC65FLAGS = -Or -W error
+CA65FLAGS = -g
+CC65FLAGS = -g -Or -W error
 
 EXTZP = cbm510 \
         cbm610 \