diff --git a/.github/workflows/docs_ci.yml b/.github/workflows/docs_ci.yml
index 5f7bfb93f51ad7..c8755b2e574972 100644
--- a/.github/workflows/docs_ci.yml
+++ b/.github/workflows/docs_ci.yml
@@ -15,7 +15,10 @@ on:
 jobs:
   check-markdown:
     runs-on: ubuntu-20.04
-    if: github.event_name != 'push' || github.event.ref == 'refs/heads/master' || github.event.repository.full_name != 'vlang/v'
+    if: >
+      github.event_name != 'push'
+      || github.event.ref == 'refs/heads/master'
+      || github.event.repository.full_name != 'vlang/v'
     timeout-minutes: 5
     steps:
       - uses: actions/checkout@v3
@@ -28,10 +31,13 @@ jobs:
 
   report-missing-fn-doc:
     runs-on: ubuntu-20.04
-    if: github.event_name != 'push' || github.event.ref == 'refs/heads/master' || github.event.repository.full_name != 'vlang/v'
+    if: >
+      github.event_name != 'push'
+      || github.event.ref == 'refs/heads/master'
+      || github.event.repository.full_name != 'vlang/v'
     timeout-minutes: 5
     env:
-      MOPTIONS: --relative-paths --exclude /vlib/v/ --exclude /builtin/linux_bare/ --exclude /testdata/ --exclude /tests/
+      MOPTIONS: --diff --deprecated --relative-paths --exclude /vlib/v/ --exclude /builtin/linux_bare/ --exclude /testdata/ --exclude /tests/
     steps:
       - uses: actions/checkout@v3
       - name: Build V
@@ -46,4 +52,4 @@ jobs:
 
       - name: Check against parent commit
         run: |
-          ./v missdoc --diff $MOPTIONS pv/vlib vlib
+          ./v missdoc $MOPTIONS pv/vlib vlib
diff --git a/cmd/tools/vmissdoc.v b/cmd/tools/vmissdoc.v
index 75080c33005671..4a4c6a76238d72 100644
--- a/cmd/tools/vmissdoc.v
+++ b/cmd/tools/vmissdoc.v
@@ -103,12 +103,12 @@ fn (opt &Options) collect_undocumented_functions_in_path(path string) []Undocume
 }
 
 fn (opt &Options) report_undocumented_functions_in_path(path string) int {
-	mut list := opt.collect_undocumented_functions_in_path(path)
-	opt.report_undocumented_functions(list)
-	return list.len
+	list := opt.collect_undocumented_functions_in_path(path)
+	return opt.report_undocumented_functions(list)
 }
 
-fn (opt &Options) report_undocumented_functions(list []UndocumentedFN) {
+fn (opt &Options) report_undocumented_functions(list []UndocumentedFN) int {
+	mut nreports := 0
 	if list.len > 0 {
 		for undocumented_fn in list {
 			mut line_numbers := '${undocumented_fn.line}:0:'
@@ -128,6 +128,7 @@ fn (opt &Options) report_undocumented_functions(list []UndocumentedFN) {
 			}
 			if opt.deprecated {
 				println('${ofile}:${line_numbers}${undocumented_fn.signature} ${tags_str}')
+				nreports++
 			} else {
 				mut has_deprecation_tag := false
 				for tag in undocumented_fn.tags {
@@ -138,10 +139,12 @@ fn (opt &Options) report_undocumented_functions(list []UndocumentedFN) {
 				}
 				if !has_deprecation_tag {
 					println('${ofile}:${line_numbers}${undocumented_fn.signature} ${tags_str}')
+					nreports++
 				}
 			}
 		}
 	}
+	return nreports
 }
 
 fn (opt &Options) diff_undocumented_functions_in_paths(path_old string, path_new string) []UndocumentedFN {
@@ -275,8 +278,8 @@ fn main() {
 			exit(1)
 		}
 		list := opt.diff_undocumented_functions_in_paths(path_old, path_new)
-		if list.len > 0 {
-			opt.report_undocumented_functions(list)
+		nreports := opt.report_undocumented_functions(list)
+		if nreports > 0 {
 			exit(1)
 		}
 		exit(0)