diff --git a/platformio.ini b/platformio.ini
index 9239ace72c..c138a4a48c 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -212,7 +212,7 @@ extra_scripts      =
   pre:buildroot/share/PlatformIO/scripts/common-dependencies.py
   pre:buildroot/share/PlatformIO/scripts/common-cxxflags.py
   post:buildroot/share/PlatformIO/scripts/common-dependencies-post.py
-build_flags        = -fmax-errors=5 -g -D__MARLIN_FIRMWARE__ -fmerge-constants
+build_flags        = -fmax-errors=5 -g3 -D__MARLIN_FIRMWARE__ -fmerge-constants
 lib_deps           =
 
 #