diff --git a/build-config/common.conf b/build-config/common.conf
index b38f676c..758f7f13 100644
--- a/build-config/common.conf
+++ b/build-config/common.conf
@@ -15,9 +15,9 @@ PREFIX=$(HOME)
 SYSTEM_DB=/usr/local/share/pEp/system.db
 # Filename of the pEpEngine library
 #TARGET This option is platform-specific
-# If not empty, create a debug build
+# If not empty, create a debug build. This variable is ineffective in your PLATFORM_OVERRIDE.conf file.
 DEBUG=
-# If not empty, print compiler warnings
+# If not empty, print compiler warnings. This variable is ineffective in your PLATFORM_OVERRIDE.conf file.
 WARN=placeholder
 
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