diff --git a/.gitignore b/.gitignore
index 1171bf3c663..ac73c5a530d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -31,6 +31,7 @@ sanity-out/
 scripts/grub
 doc/reference/kconfig/CONFIG_*
 doc/reference/kconfig/index.rst
+doc/doc.warnings
 tags
 .project
 .cproject
diff --git a/doc/Makefile b/doc/Makefile
index cefc765108b..8079b7bddc6 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -80,7 +80,7 @@ prep: doxy content kconfig
 
 html: content kconfig
 	$(Q)$(SPHINXBUILD) -t $(DOC_TAG) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html 2>&1 | tee doc.log;
-	$(Q)./scripts/filter-doc-log.sh doc.log > doc.warnings 2>&1;
+	$(Q)./scripts/filter-doc-log.sh doc.log
 	@rm -rf samples
 	@rm -rf boards
 
diff --git a/doc/scripts/filter-doc-log.sh b/doc/scripts/filter-doc-log.sh
index 1a7fe20a14e..22d562e26ad 100755
--- a/doc/scripts/filter-doc-log.sh
+++ b/doc/scripts/filter-doc-log.sh
@@ -11,15 +11,29 @@ CONFIG_DIR=${ZEPHYR_BASE}/.known-issues/doc
 
 LOG_FILE=$1
 
+red='\E[31m'
+green='\e[32m'
+
 if [ -z "${LOG_FILE}" ]; then
         echo "Error in $0: missing input parameter <logfile>"
         exit 1
 fi
 
-if [ -e "${LOG_FILE}" ]; then
-   if [ -s "${LOG_FILE}" ]; then
-      $KI_SCRIPT --config-dir ${CONFIG_DIR} ${LOG_FILE}
+if [ -s "${LOG_FILE}" ]; then
+   $KI_SCRIPT --config-dir ${CONFIG_DIR} ${LOG_FILE} > doc.warnings 2>&1
+   if [ -s doc.warnings ]; then
+	   echo
+	   echo -e "${red}New errors/warnings found, please fix them:"
+	   echo -e "=============================================="
+	   tput sgr0
+	   echo
+	   cat doc.warnings
+	   echo
+   else
+	   echo -e "${green}No new errors/warnings."
+	   tput sgr0
    fi
+
 else
    echo "Error in $0: logfile \"${LOG_FILE}\" not found."
    exit 1