diff --git a/decoder.x86.mk b/decoder.x86.mk
index 2915ffd..e7a4686 100644
--- a/decoder.x86.mk
+++ b/decoder.x86.mk
@@ -1,4 +1,4 @@
-libavcd_cflags_x86 += -DX86 -m32 -msse4.2 -mno-avx -DDEFAULT_ARCH=D_ARCH_X86_SSE42
+libavcd_cflags_x86 += -DX86 -msse4.2 -mno-avx -DDEFAULT_ARCH=D_ARCH_X86_SSE42
 
 libavcd_inc_dir_x86     +=  $(LOCAL_PATH)/decoder/x86
 libavcd_inc_dir_x86     +=  $(LOCAL_PATH)/common/x86
diff --git a/decoder.x86_64.mk b/decoder.x86_64.mk
index 78425b7..b265f4f 100644
--- a/decoder.x86_64.mk
+++ b/decoder.x86_64.mk
@@ -1,4 +1,4 @@
-libavcd_cflags_x86_64 += -DX86 -m64 -msse4.2 -mno-avx  -DDEFAULT_ARCH=D_ARCH_X86_SSE42
+libavcd_cflags_x86_64 += -DX86 -msse4.2 -mno-avx  -DDEFAULT_ARCH=D_ARCH_X86_SSE42
 
 libavcd_inc_dir_x86_64   +=  $(LOCAL_PATH)/decoder/x86
 libavcd_inc_dir_x86_64   +=  $(LOCAL_PATH)/common/x86
diff --git a/encoder.x86.mk b/encoder.x86.mk
index 8c60380..f1e2ffa 100644
--- a/encoder.x86.mk
+++ b/encoder.x86.mk
@@ -1,4 +1,4 @@
-libavce_cflags_x86 += -DX86 -m32 -msse4.2 -mno-avx
+libavce_cflags_x86 += -DX86 -msse4.2 -mno-avx
 
 libavce_inc_dir_x86     +=  $(LOCAL_PATH)/encoder/x86
 libavce_inc_dir_x86     +=  $(LOCAL_PATH)/common/x86
diff --git a/encoder.x86_64.mk b/encoder.x86_64.mk
index 188a1b9..14205a3 100644
--- a/encoder.x86_64.mk
+++ b/encoder.x86_64.mk
@@ -1,4 +1,4 @@
-libavce_cflags_x86_64   += -DX86 -m64 -msse4.2 -mno-avx
+libavce_cflags_x86_64   += -DX86 -msse4.2 -mno-avx
 
 libavce_inc_dir_x86_64  +=  $(LOCAL_PATH)/encoder/x86
 libavce_inc_dir_x86_64  +=  $(LOCAL_PATH)/common/x86