diff --git a/Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/mem/MemoryBlockDB.java b/Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/mem/MemoryBlockDB.java
index a0580737a3..9984864649 100644
--- a/Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/mem/MemoryBlockDB.java
+++ b/Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/mem/MemoryBlockDB.java
@@ -72,6 +72,7 @@ public class MemoryBlockDB implements MemoryBlock {
 		}
 		length = lRecord.getLongValue(MemoryMapDBAdapter.LENGTH_COL);
 		lastSubBlock = null;
+		Collections.sort(list);
 		subBlocks = list;
 	}
 
diff --git a/Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/mem/SubMemoryBlock.java b/Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/mem/SubMemoryBlock.java
index f7cfb6fc05..8a7e28957a 100644
--- a/Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/mem/SubMemoryBlock.java
+++ b/Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/mem/SubMemoryBlock.java
@@ -26,7 +26,7 @@ import ghidra.program.model.mem.*;
  * Interface for the various types of memory block sections.  They are used by a {@link MemoryBlockDB}
  * to do the actual storing and fetching of the bytes that make up a MemoryBlock
  */
-abstract class SubMemoryBlock {
+abstract class SubMemoryBlock implements Comparable<SubMemoryBlock> {
 
 	protected final MemoryMapDBAdapter adapter;
 	protected final Record record;
@@ -249,4 +249,12 @@ abstract class SubMemoryBlock {
 	protected abstract ByteSourceRangeList getByteSourceRangeList(MemoryBlock block, Address start,
 			long memBlockOffset, long size);
 
+	@Override
+	public int compareTo(SubMemoryBlock o) {
+		long result = getStartingOffset() - o.getStartingOffset();
+		if (result == 0) {
+			return 0;
+		}
+		return result > 0 ? 1 : -1;
+	}
 }