diff --git a/Makefile.mk b/Makefile.mk
index 138bc11b6..f2fa4874b 100644
--- a/Makefile.mk
+++ b/Makefile.mk
@@ -167,7 +167,7 @@ CFLAGS_WFATAL_ERRORS ?= -Wfatal-errors
 
 # Optimizations
 CFLAGS_OPTIMIZE ?= -Os -flto
-CFLAGS_NO_OPTIMIZE ?= -Og
+CFLAGS_NO_OPTIMIZE ?= -O0
 LDFLAGS_OPTIMIZE ?=
 LDFLAGS_NO_OPTIMIZE ?=