diff --git a/src/main/java/ch/hevs/isi/core/BooleanDataPoint.java b/src/main/java/ch/hevs/isi/core/BooleanDataPoint.java
index 5a53db6..a432e70 100644
--- a/src/main/java/ch/hevs/isi/core/BooleanDataPoint.java
+++ b/src/main/java/ch/hevs/isi/core/BooleanDataPoint.java
@@ -25,7 +25,7 @@ public class BooleanDataPoint extends DataPoint{
     public String toString(){
         String s;
         s = this.getLabel();
-        s += ": ";
+        s += "=";
         s += this.getValue();
         return s;
     }
diff --git a/src/main/java/ch/hevs/isi/core/FloatDataPoint.java b/src/main/java/ch/hevs/isi/core/FloatDataPoint.java
index 215b874..c168dd4 100644
--- a/src/main/java/ch/hevs/isi/core/FloatDataPoint.java
+++ b/src/main/java/ch/hevs/isi/core/FloatDataPoint.java
@@ -25,7 +25,7 @@ public class FloatDataPoint extends DataPoint{
     public String toString(){
         String s;
         s = this.getLabel();
-        s += ": ";
+        s += "=";
         s += this.getValue();
         return s;
     }