diff --git a/sphinx_needs/utils.py b/sphinx_needs/utils.py
index ab5d9ab07..5ee09f651 100644
--- a/sphinx_needs/utils.py
+++ b/sphinx_needs/utils.py
@@ -326,7 +326,7 @@ def check_and_get_external_filter_func(
         return None
 
     try:
-        filter_module, filter_function = filter_func_ref.rsplit(".")
+        filter_module, filter_function = filter_func_ref.rsplit(".", 1)
     except ValueError:
         raise NeedsInvalidFilter("does not contain a dot")
 
diff --git a/tests/doc_test/doc_needs_filter_data/filter_code.rst b/tests/doc_test/doc_needs_filter_data/filter_code.rst
index c3ba58272..644c4a50f 100644
--- a/tests/doc_test/doc_needs_filter_data/filter_code.rst
+++ b/tests/doc_test/doc_needs_filter_data/filter_code.rst
@@ -22,6 +22,14 @@ Filter code test cases
     :labels: project_x, project_y
     :filter-func: filter_code_func.my_pie_filter_code
 
+.. needtable:: Filter code func table with multiple dots filter function path 
+   :style: table
+   :filter-func: module.filter_code_func.own_filter_code
+
+
+.. needpie:: Filter code func pie with multiple dots filter function path 
+    :labels: project_x, project_y
+    :filter-func: module.filter_code_func.my_pie_filter_code
 
 .. needtable:: Malformed filter func table
    :style: table
@@ -31,3 +39,12 @@ Filter code test cases
 .. needpie:: Malformed filter func pie
     :labels: project_x, project_y
     :filter-func: filter_code_func.my_pie_filter_code(
+
+.. needtable:: Malformed filter func table with multiple dots filter function path 
+   :style: table
+   :filter-func: module.filter_code_func.own_filter_code(
+
+
+.. needpie:: Malformed filter func pie with multiple dots filter function path 
+    :labels: project_x, project_y
+    :filter-func: module.filter_code_func.my_pie_filter_code(
\ No newline at end of file
diff --git a/tests/doc_test/doc_needs_filter_data/module/filter_code_func.py b/tests/doc_test/doc_needs_filter_data/module/filter_code_func.py
new file mode 100644
index 000000000..091423552
--- /dev/null
+++ b/tests/doc_test/doc_needs_filter_data/module/filter_code_func.py
@@ -0,0 +1,34 @@
+def own_filter_code(needs, results):
+    for need in needs:
+        if need["type"] == "test":
+            results.append(need)
+
+
+def own_filter_code_args(needs, results, **kwargs):
+    for need in needs:
+        if need["status"] == kwargs["arg1"]:
+            results.append(need)
+
+
+def my_pie_filter_code(needs, results):
+    cnt_x = 0
+    cnt_y = 0
+    for need in needs:
+        if need["variant"] == "project_x":
+            cnt_x += 1
+        if need["variant"] == "project_y":
+            cnt_y += 1
+    results.append(cnt_x)
+    results.append(cnt_y)
+
+
+def my_pie_filter_code_args(needs, results, **kwargs):
+    cnt_x = 0
+    cnt_y = 0
+    for need in needs:
+        if need["status"] == kwargs["arg1"]:
+            cnt_x += 1
+        if need["status"] == kwargs["arg2"]:
+            cnt_y += 1
+    results.append(cnt_x)
+    results.append(cnt_y)
diff --git a/tests/test_needs_filter_data.py b/tests/test_needs_filter_data.py
index 53e45f3dd..5bf747d73 100644
--- a/tests/test_needs_filter_data.py
+++ b/tests/test_needs_filter_data.py
@@ -20,14 +20,17 @@ def test_doc_needs_filter_data_html(test_app):
     ).splitlines()
     print(warnings)
     assert warnings == [
-        "srcdir/filter_code.rst:26: WARNING: malformed function signature: 'own_filter_code(' [needs.filter_func]",
-        "srcdir/filter_code.rst:31: WARNING: malformed function signature: 'my_pie_filter_code(' [needs.filter_func]",
+        "srcdir/filter_code.rst:34: WARNING: malformed function signature: 'own_filter_code(' [needs.filter_func]",
+        "srcdir/filter_code.rst:43: WARNING: malformed function signature: 'own_filter_code(' [needs.filter_func]",
+        "srcdir/filter_code.rst:39: WARNING: malformed function signature: 'my_pie_filter_code(' [needs.filter_func]",
+        "srcdir/filter_code.rst:48: WARNING: malformed function signature: 'my_pie_filter_code(' [needs.filter_func]",
         "WARNING: variant_not_equal_current_variant: failed",
         "\t\tfailed needs: 1 (extern_filter_story_002)",
         "\t\tused filter: variant != current_variant [needs.warnings]",
     ]
 
     index_html = Path(app.outdir, "index.html").read_text()
+    filter_code = Path(app.outdir, "filter_code.html").read_text()
 
     # Check need_count works
     assert "The amount of needs that belong to current variants: 6" in index_html
@@ -45,6 +48,10 @@ def test_doc_needs_filter_data_html(test_app):
         '<td class="needs_tags"><p>my_tag<em>; </em>current_variant</p></td>'
         in index_html
     )
+    assert (
+        '<span class="caption-text">Filter code func table with multiple dots filter function path</span>'
+        in filter_code
+    )
 
     # check needflow works
     if int(doc_ver.split(".")[1]) >= 18:
@@ -58,7 +65,14 @@ def test_doc_needs_filter_data_html(test_app):
 
     # check needpie works
     assert '<img alt="_images/need_pie_dba00.svg" id="needpie-index-0"' in index_html
-
+    assert (
+        '<img alt="_images/need_pie_446e9.svg" id="needpie-filter_code-0"'
+        in filter_code
+    )
+    assert (
+        '<img alt="_images/need_pie_fac86.svg" id="needpie-filter_code-1"'
+        in filter_code
+    )
     # check needextend works
     assert (
         '<span class="needs_tags"><span class="needs_label">tags: </span>'