diff --git a/configure b/configure
index 956e3a147f60919daab5259a4fc497e1c6da9343..a1346fac3f5e1bf4e735852a8008a2fe92de66dc 100755
--- a/configure
+++ b/configure
@@ -273,6 +273,7 @@ Optimization options (experts only):
   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
   --disable-mipsfpu        disable floating point MIPS optimizations
+  --disable-fast-unaligned consider unaligned accesses slow
   --postproc-version=V     build libpostproc version V.
                            Where V can be '$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO' or 'current'. [$postproc_version_default]
 
@@ -1035,6 +1036,7 @@ CONFIG_LIST="
     doc
     dwt
     dxva2
+    fast_unaligned
     fastdiv
     fft
     fontconfig