diff --git a/src/lib/openjp2/opj_malloc.c b/src/lib/openjp2/opj_malloc.c
index 3c8cedf71..e04db912b 100644
--- a/src/lib/openjp2/opj_malloc.c
+++ b/src/lib/openjp2/opj_malloc.c
@@ -1,6 +1,6 @@
 /*
- * The copyright in this software is being made available under the 2-clauses 
- * BSD License, included below. This software may be subject to other third 
+ * The copyright in this software is being made available under the 2-clauses
+ * BSD License, included below. This software may be subject to other third
  * party and contributor rights, including patent rights, and no such rights
  * are granted under this license.
  *
@@ -32,6 +32,10 @@
 #define OPJ_SKIP_POISON
 #include "opj_includes.h"
 
+#if defined(OPJ_HAVE_MALLOC_H) && defined(OPJ_HAVE_MEMALIGN)
+# include <malloc.h>
+#endif
+
 #ifndef SIZE_MAX
 # define SIZE_MAX ((size_t) -1)
 #endif
@@ -68,7 +72,7 @@ static INLINE void *opj_aligned_alloc_n(size_t alignment, size_t size)
   /*
    * Generic aligned malloc implementation.
    * Uses size_t offset for the integer manipulation of the pointer,
-   * as uintptr_t is not available in C89 to do 
+   * as uintptr_t is not available in C89 to do
    * bitwise operations on the pointer itself.
    */
   alignment--;
@@ -78,7 +82,7 @@ static INLINE void *opj_aligned_alloc_n(size_t alignment, size_t size)
 
     /* Room for padding and extra pointer stored in front of allocated area */
     size_t overhead = alignment + sizeof(void *);
-		
+
     /* let's be extra careful */
     assert(alignment <= (SIZE_MAX - sizeof(void *)));
 
@@ -151,7 +155,7 @@ static INLINE void *opj_aligned_realloc_n(void *ptr, size_t alignment, size_t ne
     if (new_size > SIZE_MAX - overhead) {
       return NULL;
     }
-		
+
     oldmem = ((void**) ptr)[-1];
     newmem = (OPJ_UINT8*)realloc(oldmem, new_size + overhead);
     if (newmem == NULL) {