diff --git a/Mage/src/main/java/mage/abilities/AbilityImpl.java b/Mage/src/main/java/mage/abilities/AbilityImpl.java
index 5a59a134727..01485b42ca2 100644
--- a/Mage/src/main/java/mage/abilities/AbilityImpl.java
+++ b/Mage/src/main/java/mage/abilities/AbilityImpl.java
@@ -450,6 +450,12 @@ public abstract class AbilityImpl implements Ability {
                     throw new IllegalArgumentException("Unknown ability cast mode: " + ((SpellAbility) this).getSpellAbilityCastMode());
             }
         }
+        if (this.getAbilityType() == AbilityType.SPELL && this instanceof SpellAbility
+                // 117.9a Only one alternative cost can be applied to any one spell as it's being cast.
+                // So an alternate spell ability can't be paid with Omniscience
+                && ((SpellAbility) this).getSpellAbilityType() == SpellAbilityType.BASE_ALTERNATE) {
+            canUseAlternativeCost = false;
+        }
 
         boolean alternativeCostUsed = false;
         if (sourceObject != null && !(sourceObject instanceof Permanent)) {
@@ -473,17 +479,12 @@ public abstract class AbilityImpl implements Ability {
             }
             // controller specific alternate spell costs
             if (canUseAlternativeCost && !noMana && !alternativeCostUsed) {
-                if (this.getAbilityType() == AbilityType.SPELL
-                        // 117.9a Only one alternative cost can be applied to any one spell as it's being cast.
-                        // So an alternate spell ability can't be paid with Omniscience
-                        && ((SpellAbility) this).getSpellAbilityType() != SpellAbilityType.BASE_ALTERNATE) {
-                    for (AlternativeSourceCosts alternativeSourceCosts : controller.getAlternativeSourceCosts()) {
-                        if (alternativeSourceCosts.isAvailable(this, game)) {
-                            if (alternativeSourceCosts.askToActivateAlternativeCosts(this, game)) {
-                                // only one alternative costs may be activated
-                                alternativeCostUsed = true;
-                                break;
-                            }
+                for (AlternativeSourceCosts alternativeSourceCosts : controller.getAlternativeSourceCosts()) {
+                    if (alternativeSourceCosts.isAvailable(this, game)) {
+                        if (alternativeSourceCosts.askToActivateAlternativeCosts(this, game)) {
+                            // only one alternative costs may be activated
+                            alternativeCostUsed = true;
+                            break;
                         }
                     }
                 }