diff --git a/pom.xml b/pom.xml
index 6b1d6df1bc763dcb15a3852077e82ef84b47d392..ff81e5dd21d4848f93433df352225c8105fc4966 100644
--- a/pom.xml
+++ b/pom.xml
@@ -8,7 +8,7 @@
 
     <groupId>fr.cemagref</groupId>
     <artifactId>observation</artifactId>
-    <version>0.1.1</version>
+    <version>0.1.2</version>
 
     <dependencies>
         <dependency>
@@ -62,8 +62,8 @@
     <packaging>jar</packaging>
 
     <scm>
-        <connection>scm:svn:http://trac.clermont.cemagref.fr/svn/LISC/Observation/tags/observation-0.1.1</connection>
-        <url>http://trac.clermont.cemagref.fr/projets/LISC/browser/Observation/tags/observation-0.1.1</url>
+        <connection>scm:svn:http://trac.clermont.cemagref.fr/svn/LISC/Observation/tags/observation-0.1.2</connection>
+        <url>http://trac.clermont.cemagref.fr/projets/LISC/browser/Observation/tags/observation-0.1.2</url>
     </scm>
     <build>
         <plugins>
diff --git a/src/main/java/fr/cemagref/observation/observers/jfreechart/TemporalChart.java b/src/main/java/fr/cemagref/observation/observers/jfreechart/TemporalChart.java
index 709447d5e1771e4a623e0b0dbd6826c464e78845..a6e510d32699d88e1eb5d6658c2a7d3b0725a978 100644
--- a/src/main/java/fr/cemagref/observation/observers/jfreechart/TemporalChart.java
+++ b/src/main/java/fr/cemagref/observation/observers/jfreechart/TemporalChart.java
@@ -29,7 +29,7 @@ public abstract class TemporalChart implements ObserverListener, Configurable, D
      */
     protected transient ObservablesHandler.ObservableFetcher variable;
     protected transient ObservablesHandler classObservable;
-    private String title = "", xAxisLabel = "Time", yAxisLabel = "";
+    private String titlePrefix="Observation of ", title = "", xAxisLabel = "Time", yAxisLabel = "";
 
     public TemporalChart() {
         graphTypeUpdated();
@@ -44,10 +44,18 @@ public abstract class TemporalChart implements ObserverListener, Configurable, D
     protected void variableUpdated() {
         if (variable != null) {
             yAxisLabel = variable.getDescription();
-            title = "Observation of " + yAxisLabel;
+            title = titlePrefix + yAxisLabel;
         }
     }
 
+    /**
+     * Modify the prefix used for updating the title. By default, it is "Observation of ".
+     * @param prefix
+     */
+    protected void setTitlePrefix(String prefix) {
+        this.titlePrefix = prefix;
+    }
+
     protected void graphTypeUpdated() {
         PlotOrientation orientation = PlotOrientation.VERTICAL;
         boolean legend = true;