diff --git a/Makefile b/Makefile
index 88c8e03a0..893859bf3 100644
--- a/Makefile
+++ b/Makefile
@@ -98,7 +98,7 @@ CXX := /usr/bin/g++
 # LDFLAGS   Linker Flags
 #----------------------------------------------------------------------
 CPPFLAGS  += $(DEFINES) $(DEFAULTS) $(INCLUDE)
-CPPFLAGS  += -ggdb -g3 -O3
+CPPFLAGS  += -ggdb -g3
 CPPFLAGS  += -MMD
 CPPFLAGS  += -flto=auto -fno-lto
 CPPFLAGS  += -Wall -Wextra -Werror