diff --git a/cal_tools/cal_tools/dssclib.py b/cal_tools/cal_tools/dssclib.py
index ab3f9530d4c060534793963810eb952be6322784..0a691955011abdeade9ed8b0b273455c4b7de970 100644
--- a/cal_tools/cal_tools/dssclib.py
+++ b/cal_tools/cal_tools/dssclib.py
@@ -69,7 +69,7 @@ def get_dssc_ctrl_data(in_folder, slow_data_pattern,
             ctrlDataFiles[quadrant + 1] = f
 
     if len(ctrlDataFiles) == 0:
-        print("ERROR: no Control Slow Data found!")
+        print("ERROR: no Slow Control Data found!")
         return targetGainAll, encodedGainAll, operatingFreqAll
 
     daq_format = None
@@ -84,7 +84,7 @@ def get_dssc_ctrl_data(in_folder, slow_data_pattern,
         elif '/METADATA/deviceId' in ctlrh5file:
             ctrlloc = ctlrh5file['/METADATA/deviceId'][0]
         else:
-            print("No Slow Control Data found in files!")
+            print("ERROR: no Slow Control Data found in files!")
             return targetGainAll, encodedGainAll, operatingFreqAll
 
     ctrlloc = ctrlloc.decode("utf-8")
@@ -132,7 +132,7 @@ def get_dssc_ctrl_data(in_folder, slow_data_pattern,
                 # 22 corresponds to 4.5 MHz, 44 to 2.25 MHz, etc.
                 operatingFreqs[quadrant] = 4.5 * (22.0 / opFreq)
         else:
-            print(f"no slow data for quadrant {quadrant} is found")
+            print(f"ERROR: no slow data for quadrant {quadrant} is found")
 
     for varpair in [
         (targetGainAll, tGain),