diff --git a/gfx/src/xprint/xprintutil.h b/gfx/src/xprint/xprintutil.h
index 81fdba2c22bf..4929db91e771 100644
--- a/gfx/src/xprint/xprintutil.h
+++ b/gfx/src/xprint/xprintutil.h
@@ -48,7 +48,11 @@
 #include <prmem.h>
 #include <prthread.h>
 #define XPU_USE_NSPR 1
-#define XPU_USE_THREADS 1
+/*
+ * Disabled for now - Threaded codepath does not work properly always.
+ * See bug 134570 ("Print-to-file not working with threaded XprintUtil")
+ * #define XPU_USE_THREADS 1
+ */
 #endif /* USE_MOZILLA_TYPES */
 
 #ifdef DEBUG
diff --git a/gfx/src/xprint/xprintutil_printtofile.c b/gfx/src/xprint/xprintutil_printtofile.c
index 9fb06817fc85..0a0e63d82ab6 100644
--- a/gfx/src/xprint/xprintutil_printtofile.c
+++ b/gfx/src/xprint/xprintutil_printtofile.c
@@ -357,11 +357,11 @@ void *XpuPrintToFile( Display *pdpy, XPContext pcontext, const char *filename )
 XPGetDocStatus XpuWaitForPrintFileChild( void *handle )
 {
   MyPrintFileData *mpfd   = (MyPrintFileData *)handle;
-  siginfo_t        res;
+  int              res;
   XPGetDocStatus   status = XPGetDocError; /* used when read() from pipe fails */
   
-  if( XPU_TRACE(waitid(P_PID, mpfd->pid, &res, WEXITED)) == -1 )
-    perror("XpuWaitForPrintFileChild: waitid failure");
+  if( XPU_TRACE(waitpid(mpfd->pid, &res, 0)) == -1 )
+    perror("XpuWaitForPrintFileChild: waitpid failure");
 
   /* read the status from the child */ 
   if( read(mpfd->pipe[0], &status, sizeof(XPGetDocStatus)) != sizeof(XPGetDocStatus) )