diff --git a/Makefile b/Makefile
index 0acded15..dabf2f98 100644
--- a/Makefile
+++ b/Makefile
@@ -23,11 +23,7 @@ suffix	?=
 
 CC	?= gcc
 CXX	?= g++
-ifeq ($(shell (export LC_ALL=C; ($(CC) --version 2>&1; $(CC) -v 2>&1) | grep -q -i 'e2k' && echo yes)),yes)
-CFLAGS	?= -O3 -g3 -Wall -Werror -Wextra -ffunction-sections -fPIC -fvisibility=hidden
-else
 CFLAGS	?= -O2 -g3 -Wall -Werror -Wextra -ffunction-sections -fPIC -fvisibility=hidden
-endif
 
 XCFLAGS	?= -DNDEBUG=1 -DMDBX_DEBUG=0 -DLIBMDBX_EXPORTS=1
 CFLAGS	+= -D_GNU_SOURCE=1 -std=gnu11 -pthread $(XCFLAGS)