diff --git a/docs/conf/magic b/docs/conf/magic

index 7c56119..bc891d9 100644

--- a/docs/conf/magic

+++ b/docs/conf/magic

@@ -87,7 +87,7 @@

 # Microsoft WAVE format (*.wav)

 # [GRR 950115:  probably all of the shorts and longs should be leshort/lelong]

 #					Microsoft RIFF

-0	string		RIFF		audio/unknown

+0	string		RIFF		

 #					- WAVE format

 >8	string		WAVE		audio/x-wav

 # MPEG audio.

diff --git a/modules/metadata/mod_mime_magic.c b/modules/metadata/mod_mime_magic.c

index 22dadaf..c12529a 100644

--- a/modules/metadata/mod_mime_magic.c

+++ b/modules/metadata/mod_mime_magic.c

@@ -606,7 +606,7 @@ static int magic_rsl_putchar(request_rec *r, char c)

     /* high overhead for 1 char - just hope they don't do this much */

     str[0] = c;

     str[1] = '\0';

-    return magic_rsl_add(r, str);

+    return magic_rsl_add(r, apr_pstrdup(r->pool, str));

 }

 /* allocate and copy a contiguous string from a result string list */