diff --git a/CHANGELOG.md b/CHANGELOG.md
index cfe5379..64e2a8f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+# Version 1.10.3
+* Fixed Capability simulation
+
 # Version 1.10.2
 * Changed the Soul Laser Base to have a soul capability and the pipe network will now store the souls extracted from the pipes
 * Added a lens background to the Soul Laser Base slot
diff --git a/gradle.properties b/gradle.properties
index daf93c5..3dcab7e 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -30,7 +30,7 @@ mod_name=Industrial Foregoing Souls
 # The license of the mod. Review your options at https://choosealicense.com/. All Rights Reserved is the default.
 mod_license=MIT
 # The mod version. See https://semver.org/
-mod_version=1.10.2
+mod_version=1.10.3
 # The group ID for the mod. It is only important when publishing as an artifact to a Maven repository.
 # This should match the base package used for the mod sources.
 # See https://maven.apache.org/guides/mini/guide-naming-conventions.html
diff --git a/src/main/java/com/buuz135/industrialforegoingsouls/capabilities/SLBSoulCap.java b/src/main/java/com/buuz135/industrialforegoingsouls/capabilities/SLBSoulCap.java
index 2127fdc..6a69ff2 100644
--- a/src/main/java/com/buuz135/industrialforegoingsouls/capabilities/SLBSoulCap.java
+++ b/src/main/java/com/buuz135/industrialforegoingsouls/capabilities/SLBSoulCap.java
@@ -36,7 +36,9 @@ public int drain(int maxDrain, Action action) {
         if (action.execute()){
             return blockEntity.useSoul(maxDrain);
         } else {
-            return Math.max(0, this.blockEntity.getSoulAmount() - maxDrain);
+            var oldAmount = this.blockEntity.getSoulAmount();
+            var newAmount = Math.max(0, this.blockEntity.getSoulAmount() - maxDrain);
+            return oldAmount - newAmount;
         }
     }
 }