diff --git a/IMG_png.c b/IMG_png.c
index b5c608273..6ab0aa772 100644
--- a/IMG_png.c
+++ b/IMG_png.c
@@ -695,6 +695,7 @@ static int IMG_SavePNG_RW_libpng(SDL_Surface *surface, SDL_RWops *dst, int freed
 #else
 #define MINIZ_LITTLE_ENDIAN 0
 #endif
+#define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 0
 #define MINIZ_SDL_NOUNUSED
 #include "miniz.h"
 
diff --git a/miniz.h b/miniz.h
index 76f51cbae..b213c4ebf 100644
--- a/miniz.h
+++ b/miniz.h
@@ -230,10 +230,12 @@
 #endif
 #endif /**/
 
+#ifndef MINIZ_USE_UNALIGNED_LOADS_AND_STORES
 #if MINIZ_X86_OR_X64_CPU
 // Set MINIZ_USE_UNALIGNED_LOADS_AND_STORES to 1 on CPU's that permit efficient integer loads and stores from unaligned addresses.
 #define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 1
 #endif
+#endif /**/
 
 #if defined(_M_X64) || defined(_WIN64) || defined(__MINGW64__) || defined(_LP64) || defined(__LP64__) || defined(__ia64__) || defined(__x86_64__)
 // Set MINIZ_HAS_64BIT_REGISTERS to 1 if operations on 64-bit integers are reasonably fast (and don't involve compiler generated calls to helper functions).