diff --git a/fuzzer/avc_dec_fuzzer.cpp b/fuzzer/avc_dec_fuzzer.cpp
index 3b00175..35dbca8 100644
--- a/fuzzer/avc_dec_fuzzer.cpp
+++ b/fuzzer/avc_dec_fuzzer.cpp
@@ -18,7 +18,6 @@
  * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
  */
 
-#include <malloc.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <stdio.h>
@@ -49,8 +48,12 @@ enum {
 const static int kSupportedColorFormats = NELEMENTS(supportedColorFormats);
 const static int kMaxCores = 4;
 void *iv_aligned_malloc(void *ctxt, WORD32 alignment, WORD32 size) {
+  void *buf = NULL;
   (void)ctxt;
-  return memalign(alignment, size);
+  if (0 != posix_memalign(&buf, alignment, size)) {
+      return NULL;
+  }
+  return buf;
 }
 
 void iv_aligned_free(void *ctxt, void *buf) {
@@ -217,7 +220,7 @@ void Codec::allocFrame() {
   mOutBufHandle.u4_num_bufs = num_bufs;
   for (int i = 0; i < num_bufs; i++) {
     mOutBufHandle.u4_min_out_buf_size[i] = sizes[i];
-    mOutBufHandle.pu1_bufs[i] = (UWORD8 *)memalign(16, sizes[i]);
+    mOutBufHandle.pu1_bufs[i] = (UWORD8 *)iv_aligned_malloc(NULL, 16, sizes[i]);
   }
 }
 void Codec::decodeHeader(const uint8_t *data, size_t size) {
diff --git a/test/decoder/main.c b/test/decoder/main.c
index ea7fca3..4c4d445 100644
--- a/test/decoder/main.c
+++ b/test/decoder/main.c
@@ -44,9 +44,6 @@
 #include <signal.h>
 #endif
 
-#ifndef IOS
-#include <malloc.h>
-#endif
 #ifdef IOS_DISPLAY
 #include "cast_types.h"
 #else
@@ -447,8 +444,13 @@ void ih264a_aligned_free(void *pv_ctxt, void *pv_buf)
 #if (!defined(IOS)) && (!defined(_WIN32))
 void * ih264a_aligned_malloc(void *pv_ctxt, WORD32 alignment, WORD32 i4_size)
 {
-   (void)pv_ctxt;
-    return memalign(alignment, i4_size);
+    void *buf = NULL;
+    (void)pv_ctxt;
+    if (0 != posix_memalign(&buf, alignment, i4_size))
+    {
+        return NULL;
+    }
+    return buf;
 }
 
 void ih264a_aligned_free(void *pv_ctxt, void *pv_buf)
diff --git a/test/encoder/main.c b/test/encoder/main.c
index 15261df..9d130da 100644
--- a/test/encoder/main.c
+++ b/test/encoder/main.c
@@ -29,10 +29,6 @@
 #include <assert.h>
 #include <string.h>
 
-#ifndef IOS
-#include <malloc.h>
-#endif
-
 #ifdef WINDOWS_TIMER
 #include "windows.h"
 #else
@@ -277,7 +273,12 @@ void ih264a_aligned_free(void *pv_buf)
 
 void * ih264a_aligned_malloc(WORD32 alignment, WORD32 size)
 {
-    return memalign(alignment, size);
+    void *buf = NULL;
+    if (0 != posix_memalign(&buf, alignment, size))
+    {
+        return NULL;
+    }
+    return buf;
 }
 
 void ih264a_aligned_free(void *pv_buf)