diff --git a/Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/disassembler/SetLengthOverrideAction.java b/Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/disassembler/SetLengthOverrideAction.java
index 9a6b1fed36..e8787f70c2 100644
--- a/Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/disassembler/SetLengthOverrideAction.java
+++ b/Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/disassembler/SetLengthOverrideAction.java
@@ -81,7 +81,7 @@ class SetLengthOverrideAction extends ListingContextAction {
 			}
 		}
 
-		if (maxLength == 1) {
+		if (maxLength == 0) {
 			// Assume we have an instruction whose length can't be changed
 			Msg.showError(this, null, "Length Override Error",
 				"Insufficient space to alter current length override of 1-byte");