diff --git a/.azure-pipelines.yml b/.azure-pipelines.yml
index 314d277189..ec77c7ab5f 100644
--- a/.azure-pipelines.yml
+++ b/.azure-pipelines.yml
@@ -63,6 +63,7 @@ stages:
       - script: |
           KSYMLST=`mktemp`
           KUSEDLST=`mktemp`
+          RET=0
           cat `find . -name "Kconfig*"` | \
              sed -n -e 's/^\s*config *\([A-Za-z0-9_]*\).*$/CONFIG_\1/p' \
              -e 's/^\s*menuconfig *\([A-Za-z0-9_]*\).*$/CONFIG_\1/p' \
@@ -76,10 +77,12 @@ stages:
              NUM=`comm -123 --total --output-delimiter=, ${KSYMLST} ${KUSEDLST} | \
                 cut -d , -f 3`
              if [[ $NUM -ne 0 ]]; then
-                echo "Unmigrated symbols found in $CFG"
-                exit 1
+                echo "Unmigrated symbols found in $CFG:"
+                comm -12 ${KSYMLST} ${KUSEDLST}
+                RET=1
              fi
           done
+          exit $RET
 
   - job: cppcheck
     displayName: 'Static code analysis with cppcheck'
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 43fe8c6499..f193ffd3cb 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -124,6 +124,7 @@ check for migrated symbols in board header:
   script:
     - KSYMLST=`mktemp`;
       KUSEDLST=`mktemp`;
+      RET=0;
       cat `find . -name "Kconfig*"` |
          sed -n -e 's/^\s*config *\([A-Za-z0-9_]*\).*$/CONFIG_\1/p'
          -e 's/^\s*menuconfig *\([A-Za-z0-9_]*\).*$/CONFIG_\1/p'
@@ -137,10 +138,12 @@ check for migrated symbols in board header:
          NUM=`comm -123 --total --output-delimiter=, ${KSYMLST} ${KUSEDLST} |
             cut -d , -f 3`;
          if [[ $NUM -ne 0 ]]; then
-            echo "Unmigrated symbols found in $CFG";
-            exit 1;
+            echo "Unmigrated symbols found in $CFG:";
+            comm -12 ${KSYMLST} ${KUSEDLST};
+            RET=1;
          fi;
-      done
+      done;
+      exit $RET
 
 # QA jobs for code analytics
 # static code analysis with cppcheck (we can add --enable=all later)