diff --git a/test/xml/unit_wavelet_stat.xml b/test/xml/unit_wavelet_stat.xml
index 0b4d33510d..9e5f6efdd9 100644
--- a/test/xml/unit_wavelet_stat.xml
+++ b/test/xml/unit_wavelet_stat.xml
@@ -15,7 +15,10 @@
   <test_dir>&TEST_DIR;</test_dir>
   <exit_on_fail>true</exit_on_fail>
 
-
+  <!--                                                                           -->
+  <!-- Uses standard config file thats has forecast and observations thresholds  -->
+  <!--                                                                           -->
+  
   <test name="wavelet_stat_GRIB1_NAM_STAGE4">
     <exec>&MET_BIN;/wavelet_stat</exec>
     <env>
@@ -35,5 +38,27 @@
     </output>
   </test>
 
+  <!--                                                                                 -->
+  <!-- Uses config file thats has empty list for forecast and observations thresholds  -->
+  <!--                                                                                 -->
+  
+  <test name="wavelet_stat_GRIB1_NAM_STAGE4_NO_THRESH">
+    <exec>&MET_BIN;/wavelet_stat</exec>
+    <env>
+      <pair><name>OUTPUT_PREFIX</name> <value>GRIB1_NAM_STAGE4_NO_THRESH</value></pair>
+    </env>
+    <param> \
+      &DATA_DIR_MODEL;/grib1/nam_st4/nam_2012040900_F012_gSt4.grib \
+      &OUTPUT_DIR;/pcp_combine/stage4_2012040912_F012_APCP12.nc \
+      &CONFIG_DIR;/WaveletStatConfig_no_thresholds \
+      -outdir &OUTPUT_DIR;/wavelet_stat -v 1
+    </param>   
+    <output>
+      <stat>&OUTPUT_DIR;/wavelet_stat/wavelet_stat_GRIB1_NAM_STAGE4_NO_THRESH_120000L_20120409_120000V.stat</stat>
+      <stat>&OUTPUT_DIR;/wavelet_stat/wavelet_stat_GRIB1_NAM_STAGE4_NO_THRESH_120000L_20120409_120000V_isc.txt</stat>
+      <grid_nc>&OUTPUT_DIR;/wavelet_stat/wavelet_stat_GRIB1_NAM_STAGE4_NO_THRESH_120000L_20120409_120000V.nc</grid_nc>
+      <ps>&OUTPUT_DIR;/wavelet_stat/wavelet_stat_GRIB1_NAM_STAGE4_NO_THRESH_120000L_20120409_120000V.ps</ps>
+    </output>
+  </test>
 
 </met_test>