diff --git a/ooui/graph/indicator.py b/ooui/graph/indicator.py
index 6f5a37c..75970b6 100644
--- a/ooui/graph/indicator.py
+++ b/ooui/graph/indicator.py
@@ -24,8 +24,10 @@ def __init__(self, graph_type, element):
         ) or None
         self._show_percent = parse_bool_attribute(
             element.get('showPercent')) if element.get('showPercent') else False
+        # showTotal is True by default only if totalDomain is defined, otherwise False
+        default_show_total = bool(self._total_domain)
         self._show_total = parse_bool_attribute(
-            element.get('showTotal')) if element.get('showTotal') else True
+            element.get('showTotal')) if element.get('showTotal') else default_show_total
         self._progressbar = parse_bool_attribute(
             element.get('progressbar')) if element.get('progressbar') else False
         self.domain_parse_values = {}
diff --git a/spec/graph/graph_spec.py b/spec/graph/graph_spec.py
index 2d493dd..253b1c5 100644
--- a/spec/graph/graph_spec.py
+++ b/spec/graph/graph_spec.py
@@ -33,7 +33,7 @@
         expect(graph.fields).to(contain_only('potencia'))
         expect(graph.total_domain).to(be_none)
         expect(graph.show_percent).to(be_true)
-        expect(graph.show_total).to(be_true)
+        expect(graph.show_total).to(be_false)  # False because no totalDomain
         expect(graph.progressbar).to(be_false)
         expect(graph.suffix).to(equal('kW'))
 
@@ -74,11 +74,20 @@
         expect(result).not_to(have_key('progressbar'))
         expect(result).not_to(have_key('showPercent'))
 
-    with it('should include showTotal by default'):
+    with it('should not include showTotal by default when no totalDomain'):
         xml = """<?xml version="1.0"?>
         <graph string="My indicator" type="indicator" />
         """
         graph = parse_graph(xml)
+        expect(graph.show_total).to(be_false)
+        result = graph.process(50, 100)
+        expect(result).to(have_key('showTotal', False))
+
+    with it('should include showTotal=True by default when totalDomain is defined'):
+        xml = """<?xml version="1.0"?>
+        <graph string="My indicator" type="indicator" totalDomain="[('user', '=', uid)]" />
+        """
+        graph = parse_graph(xml)
         expect(graph.show_total).to(be_true)
         result = graph.process(50, 100)
         expect(result).to(have_key('showTotal', True))
@@ -101,14 +110,22 @@
         result = graph.process(50, 100)
         expect(result).to(have_key('showTotal', True))
 
-    with it('should always include showTotal in response'):
-        xml = """<?xml version="1.0"?>
+    with it('should always include showTotal in response with correct value'):
+        xml_no_domain = """<?xml version="1.0"?>
         <graph string="My indicator" type="indicator" />
         """
-        graph = parse_graph(xml)
-        result = graph.process(50, 100)
-        expect(result).to(have_key('showTotal'))
-        expect(result['showTotal']).to(be_true)
+        graph_no_domain = parse_graph(xml_no_domain)
+        result_no_domain = graph_no_domain.process(50, 100)
+        expect(result_no_domain).to(have_key('showTotal'))
+        expect(result_no_domain['showTotal']).to(be_false)
+        
+        xml_with_domain = """<?xml version="1.0"?>
+        <graph string="My indicator" type="indicator" totalDomain="[]" />
+        """
+        graph_with_domain = parse_graph(xml_with_domain)
+        result_with_domain = graph_with_domain.process(50, 100)
+        expect(result_with_domain).to(have_key('showTotal'))
+        expect(result_with_domain['showTotal']).to(be_true)
         
         xml_false = """<?xml version="1.0"?>
         <graph string="My indicator" showTotal="0" type="indicator" />
diff --git a/spec/graph/processor_spec.py b/spec/graph/processor_spec.py
index 8c81ec5..b28f6e6 100644
--- a/spec/graph/processor_spec.py
+++ b/spec/graph/processor_spec.py
@@ -43,7 +43,7 @@ def get_graph_data(xml, model):
         """
         result = get_graph_data(xml, 'polissa')
         expect(result).to(have_keys(
-            value=275.72, color='red'
+            value=275.72, color='red', showTotal=False  # False because no totalDomain
         ))
 
     with it('should process indicatorField graph'):
@@ -68,7 +68,7 @@ def get_graph_data(xml, model):
             icon='slack',
             suffix='kW',
             type='indicatorField',
-            showTotal=True,
+            showTotal=True,  # True because totalDomain="[]" is defined
         ))
 
     with it('should process indicator graph'):