diff --git a/cde/lib/DtHelp/il/ildecompjpeg.c b/cde/lib/DtHelp/il/ildecompjpeg.c
index 1fd3ab080..96da7b8dd 100644
--- a/cde/lib/DtHelp/il/ildecompjpeg.c
+++ b/cde/lib/DtHelp/il/ildecompjpeg.c
@@ -224,6 +224,9 @@ ilBool _ilDecompJPEG (
     ilJPEGPrivPtr       pPriv;
     iljpgDataRec        jpgData;
 
+
+    memset(&jpgData, 0, sizeof(jpgData));
+
         /*  Define decompressed output from this filter: planar format unless
             a single component image (e.g. gray).
         */