diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 2e424d7c14ac..039c69ad499c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2004-05-28 Aaron W. LaFramboise <aaronraolete36@aaronwl.com>
+
+	* prefix.c (lookup_key): Cast buffer to LPBYTE.
+
 2004-06-30  Per Bothner  <per@bothner.com>
 
 	Conditionally compile support for --enable-mapped_location.
diff --git a/gcc/prefix.c b/gcc/prefix.c
index 1d2eded8ca0a..ab199b5cf516 100644
--- a/gcc/prefix.c
+++ b/gcc/prefix.c
@@ -157,11 +157,11 @@ lookup_key (char *key)
   size = 32;
   dst = xmalloc (size);
 
-  res = RegQueryValueExA (reg_key, key, 0, &type, dst, &size);
+  res = RegQueryValueExA (reg_key, key, 0, &type, (LPBYTE) dst, &size);
   if (res == ERROR_MORE_DATA && type == REG_SZ)
     {
       dst = xrealloc (dst, size);
-      res = RegQueryValueExA (reg_key, key, 0, &type, dst, &size);
+      res = RegQueryValueExA (reg_key, key, 0, &type, (LPBYTE) dst, &size);
     }
 
   if (type != REG_SZ || res != ERROR_SUCCESS)