diff --git a/pio-scripts/validate_usermods.py b/pio-scripts/validate_usermods.py
index 7b3bdf8e1..d3cf5ea8c 100644
--- a/pio-scripts/validate_usermods.py
+++ b/pio-scripts/validate_usermods.py
@@ -90,3 +90,4 @@ def validate_map_file(source, target, env):
 
 Import("env")
 env.Append(LINKFLAGS=[env.subst("-Wl,--Map=${BUILD_DIR}/${PROGNAME}.map")])
+env.AddPostAction("$BUILD_DIR/${PROGNAME}.elf", Action(validate_map_file, cmdstr='Checking linked usermods in map file...'))