diff --git a/prism/src/acceptance/AcceptanceRabin.java b/prism/src/acceptance/AcceptanceRabin.java
index b4759e29..a76a35d3 100644
--- a/prism/src/acceptance/AcceptanceRabin.java
+++ b/prism/src/acceptance/AcceptanceRabin.java
@@ -195,12 +195,21 @@ public class AcceptanceRabin
 		return accStreett;
 	}
 
+	/** Complement this acceptance condition, return as AcceptanceGeneric. */
+	public AcceptanceGeneric complementToGeneric()
+	{
+		return toAcceptanceGeneric().complementToGeneric();
+	}
+
 	@Override
 	public AcceptanceOmega complement(int numStates, AcceptanceType... allowedAcceptance) throws PrismException
 	{
 		if (AcceptanceType.contains(allowedAcceptance, AcceptanceType.STREETT)) {
 			return complementToStreett();
 		}
+		if (AcceptanceType.contains(allowedAcceptance, AcceptanceType.GENERIC)) {
+			return complementToGeneric();
+		}
 		throw new PrismNotSupportedException("Can not complement " + getTypeName() + " acceptance to a supported acceptance type");
 	}
 
diff --git a/prism/src/acceptance/AcceptanceReach.java b/prism/src/acceptance/AcceptanceReach.java
index 906f8d92..b5546824 100644
--- a/prism/src/acceptance/AcceptanceReach.java
+++ b/prism/src/acceptance/AcceptanceReach.java
@@ -115,6 +115,12 @@ public class AcceptanceReach implements AcceptanceOmega
 		return streett;
 	}
 
+	/** Complement this acceptance condition, return as AcceptanceGeneric. */
+	public AcceptanceGeneric complementToGeneric()
+	{
+		return toAcceptanceGeneric().complementToGeneric();
+	}
+
 	@Override
 	public AcceptanceOmega complement(int numStates, AcceptanceType... allowedAcceptance) throws PrismException
 	{
@@ -123,7 +129,7 @@ public class AcceptanceReach implements AcceptanceOmega
 		} else if (AcceptanceType.contains(allowedAcceptance, AcceptanceType.STREETT)) {
 			return complementToStreett(numStates);
 		} else if (AcceptanceType.contains(allowedAcceptance, AcceptanceType.GENERIC)) {
-			return new AcceptanceGeneric(AcceptanceGeneric.ElementType.FIN, (BitSet) goalStates.clone());
+			return complementToGeneric();
 		}
 		throw new PrismNotSupportedException("Can not complement " + getTypeName() + " acceptance to a supported acceptance type");
 	}
diff --git a/prism/src/acceptance/AcceptanceStreett.java b/prism/src/acceptance/AcceptanceStreett.java
index 28cd9d32..3172ade4 100644
--- a/prism/src/acceptance/AcceptanceStreett.java
+++ b/prism/src/acceptance/AcceptanceStreett.java
@@ -197,13 +197,22 @@ public class AcceptanceStreett
 		}
 		return accRabin;
 	}
-	
+
+	/** Complement this acceptance condition, return as AcceptanceGeneric. */
+	public AcceptanceGeneric complementToGeneric()
+	{
+		return toAcceptanceGeneric().complementToGeneric();
+	}
+
 	@Override
 	public AcceptanceOmega complement(int numStates, AcceptanceType... allowedAcceptance) throws PrismException
 	{
 		if (AcceptanceType.contains(allowedAcceptance, AcceptanceType.RABIN)) {
 			return complementToRabin();
 		}
+		if (AcceptanceType.contains(allowedAcceptance, AcceptanceType.GENERIC)) {
+			return complementToGeneric();
+		}
 		throw new PrismNotSupportedException("Can not complement " + getTypeName() + " acceptance to a supported acceptance type");
 	}