diff --git a/Makefile.libretro b/Makefile.libretro
index 5c95884..7b281c1 100644
--- a/Makefile.libretro
+++ b/Makefile.libretro
@@ -254,12 +254,8 @@ endif
 
 ifeq ($(DEBUG), 1)
    CFLAGS += -O0 -g
-else ifeq ($(platform),qnx)
-   CFLAGS += -Os -DNDEBUG
-else ifeq ($(platform), emscripten)
-   CFLAGS += -O2 -DNDEBUG
 else
-   CFLAGS += -O3 -DNDEBUG
+   CFLAGS += -O2 -DNDEBUG
 endif
 
 CORE_DIR := .