diff --git a/hipster-core/src/main/java/es/usc/citius/hipster/algorithm/Algorithm.java b/hipster-core/src/main/java/es/usc/citius/hipster/algorithm/Algorithm.java
index bd3667c..a9613c6 100644
--- a/hipster-core/src/main/java/es/usc/citius/hipster/algorithm/Algorithm.java
+++ b/hipster-core/src/main/java/es/usc/citius/hipster/algorithm/Algorithm.java
@@ -97,7 +97,7 @@ public String toString() {
             final String ls = System.getProperty("line.separator");
             StringBuilder builder = new StringBuilder();
             builder.append("Total solutions: ").append(goalNodes.size()).append(ls);
-            builder.append("Total time: ").append(getElapsed()).append(ls);
+            builder.append("Total time: ").append(getElapsed()).append(" ms").append(ls);
             builder.append("Total number of iterations: ").append(getIterations()).append(ls);
             // Take solutions
             int solution=1;