diff --git a/libs/libinit/Makefile b/libs/libinit/Makefile
index a424161..404b7c7 100644
--- a/libs/libinit/Makefile
+++ b/libs/libinit/Makefile
@@ -27,7 +27,9 @@ else ifeq ($(OSARCH), i386)
 ASM_ARCH := elf32
 endif
 
-CFLAGS := -fPIC -fPIE -I../include -I../../libc/include
+SIMD_FLAGS := -mno-sse -mno-sse2 -mno-sse3 -mno-ssse3 -mno-sse4.1 -mno-sse4.2 -mno-sse4 -mno-avx -mno-avx2 -mno-avx512f
+
+CFLAGS := -fPIC -fPIE -I../include -I../../libc/include $(SIMD_FLAGS)
 
 build: $(OBJECT_NAME)
 
diff --git a/libs/libsys/Makefile b/libs/libsys/Makefile
index 8097824..d53725f 100644
--- a/libs/libsys/Makefile
+++ b/libs/libsys/Makefile
@@ -27,7 +27,9 @@ else ifeq ($(OSARCH), i386)
 ASM_ARCH := elf32
 endif
 
-CFLAGS := -fPIC -fPIE -I../include -I../../libc/include
+SIMD_FLAGS := -mno-sse -mno-sse2 -mno-sse3 -mno-ssse3 -mno-sse4.1 -mno-sse4.2 -mno-sse4 -mno-avx -mno-avx2 -mno-avx512f
+
+CFLAGS := -fPIC -fPIE -I../include -I../../libc/include $(SIMD_FLAGS)
 
 build: $(OBJECT_NAME)