diff --git a/srcpkgs/chmlib/patches/arm-32.patch b/srcpkgs/chmlib/patches/arm-32.patch
new file mode 100644
index 00000000000..c9a978d9ffe
--- /dev/null
+++ b/srcpkgs/chmlib/patches/arm-32.patch
@@ -0,0 +1,11 @@
+--- src/chm_lib.c	2009-05-23 08:43:31.000000000 -0600
++++ src/chm_lib.c	2011-01-21 17:42:45.000000000 -0700
+@@ -153,7 +153,7 @@
+ /* Sparc        */
+ /* MIPS         */
+ /* PPC          */
+-#elif __i386__ || __sun || __sgi || __ppc__
++#elif __i386__ || __sun || __sgi || __ppc__ || __arm__
+ typedef unsigned char           UChar;
+ typedef short                   Int16;
+ typedef unsigned short          UInt16;