diff --git a/Makefile b/Makefile
index 0693eb8..58a313c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 ifdef DEBUG
-	COMMON_FLAGS = -g -O0
+	COMMON_FLAGS = -g -Og
 else
 	COMMON_FLAGS = -DNDEBUG -O3
 endif
diff --git a/wasm_build/Makefile b/wasm_build/Makefile
index e237bb9..261aeec 100644
--- a/wasm_build/Makefile
+++ b/wasm_build/Makefile
@@ -1,7 +1,7 @@
 ifdef RELEASE
 	OTHER_FLAGS = -DNDEBUG -O3
 else
-	OTHER_FLAGS = -O0
+	OTHER_FLAGS = -Og
 endif
 
 SOURCES = \