diff --git a/apps/shared/function_app.cpp b/apps/shared/function_app.cpp
index 04ff3e54a..298f018d2 100644
--- a/apps/shared/function_app.cpp
+++ b/apps/shared/function_app.cpp
@@ -12,9 +12,6 @@ FunctionApp::Snapshot::Snapshot() :
   m_rangeVersion(0),
   m_angleUnitVersion(Preferences::AngleUnit::Radian)
 {
-  m_interval.setStart(0);
-  m_interval.setEnd(10);
-  m_interval.setStep(1);
 }
 
 void FunctionApp::Snapshot::reset() {
diff --git a/apps/shared/interval.cpp b/apps/shared/interval.cpp
index 757157653..5731de680 100644
--- a/apps/shared/interval.cpp
+++ b/apps/shared/interval.cpp
@@ -5,10 +5,10 @@ namespace Shared {
 
 Interval::Interval() :
   m_numberOfElements(0),
-  m_start(0),
-  m_end(0),
-  m_step(0),
-  m_needCompute(false)
+  m_start(0.0),
+  m_end(10.0),
+  m_step(1.0),
+  m_needCompute(true)
 {
 }