diff --git a/src/main/java/edu/rpi/legup/history/AutoCaseRuleCommand.java b/src/main/java/edu/rpi/legup/history/AutoCaseRuleCommand.java
index 94f38be85..fac5ff1d9 100644
--- a/src/main/java/edu/rpi/legup/history/AutoCaseRuleCommand.java
+++ b/src/main/java/edu/rpi/legup/history/AutoCaseRuleCommand.java
@@ -117,9 +117,14 @@ public String getErrorString() {
             return "The selection must produce at least one case";
         }
 
-        if (caseRule.getCases(caseBoard.getBaseBoard(), elementView.getPuzzleElement()).size() > caseRule.MAX_CASES) {
+        int numberOfCaseRules = caseRule.getCases(caseBoard.getBaseBoard(), elementView.getPuzzleElement()).size();
+        System.out.println("Number of cases:" + numberOfCaseRules);
+        if (numberOfCaseRules > caseRule.MAX_CASES) {
             return "The selection can produce a max of " + caseRule.MAX_CASES + " cases";
         }
+        if (numberOfCaseRules < caseRule.MIN_CASES) {
+            return "The selection must produce a minimum of " + caseRule.MIN_CASES + " cases";
+        }
 
         return null;
     }
diff --git a/src/main/java/edu/rpi/legup/model/rules/CaseRule.java b/src/main/java/edu/rpi/legup/model/rules/CaseRule.java
index dd5121d63..b214e0119 100644
--- a/src/main/java/edu/rpi/legup/model/rules/CaseRule.java
+++ b/src/main/java/edu/rpi/legup/model/rules/CaseRule.java
@@ -15,6 +15,7 @@ public abstract class CaseRule extends Rule {
 
     private final String INVALID_USE_MESSAGE;
     public int MAX_CASES;
+    public int MIN_CASES;
 
     /**
      * CaseRule Constructor creates a new case rule.
@@ -29,6 +30,7 @@ public CaseRule(String ruleID, String ruleName, String description, String image
         this.ruleType = CASE;
         this.INVALID_USE_MESSAGE = "Invalid use of the case rule " + this.ruleName;
         this.MAX_CASES = 10;
+        this.MIN_CASES = 0; // By default, this will not actually have any effect
     }
 
     /**