diff --git a/adaa.analytics.rules/build.gradle b/adaa.analytics.rules/build.gradle
index c3562583..acc7b923 100644
--- a/adaa.analytics.rules/build.gradle
+++ b/adaa.analytics.rules/build.gradle
@@ -27,7 +27,7 @@ codeQuality {
 }
 
 sourceCompatibility = 1.8
-version = '1.7.4'
+version = '1.7.5'
 
 
 jar {
diff --git a/adaa.analytics.rules/src/main/java/adaa/analytics/rules/logic/representation/Knowledge.java b/adaa.analytics.rules/src/main/java/adaa/analytics/rules/logic/representation/Knowledge.java
index 108a3369..a555fb4b 100644
--- a/adaa.analytics.rules/src/main/java/adaa/analytics/rules/logic/representation/Knowledge.java
+++ b/adaa.analytics.rules/src/main/java/adaa/analytics/rules/logic/representation/Knowledge.java
@@ -138,13 +138,17 @@ public class Knowledge implements Serializable {
 
 	/** Gets {@link #preferredConditionsPerRule}. */
 	public int getPreferredConditionsPerRule() { return preferredConditionsPerRule; }
-	/** Sets {@link #preferredConditionsPerRule}. */
-	public void setPreferredConditionsPerRule(int preferredConditionsPerRule) { this.preferredConditionsPerRule = preferredConditionsPerRule; }
+	/** Sets {@link #preferredConditionsPerRule}. The value of 0 is translated to the infinity.*/
+	public void setPreferredConditionsPerRule(int v) {
+		this.preferredConditionsPerRule = (v == 0) ? Integer.MAX_VALUE : v;
+	}
 
 	/** Gets {@link #preferredAttributesPerRule}. */
 	public int getPreferredAttributesPerRule() { return preferredAttributesPerRule; }
-	/** Sets {@link #preferredAttributesPerRule}. */
-	public void setPreferredAttributesPerRule(int preferredAttributesPerRule) { this.preferredAttributesPerRule = preferredAttributesPerRule; }
+	/** Sets {@link #preferredAttributesPerRule}. The value of 0 is translated to the infinity.*/
+	public void setPreferredAttributesPerRule(int v) {
+		this.preferredAttributesPerRule = (v == 0) ? Integer.MAX_VALUE : v;
+	}
 
 	/**
 	 * Initializes knowledge from collections of initial rules, preferred/forbidden conditions and attributes.