diff --git a/src/main/java/com/ra4king/circuitsim/gui/CircuitSim.java b/src/main/java/com/ra4king/circuitsim/gui/CircuitSim.java
index d3bf2219..cb0802f9 100644
--- a/src/main/java/com/ra4king/circuitsim/gui/CircuitSim.java
+++ b/src/main/java/com/ra4king/circuitsim/gui/CircuitSim.java
@@ -1474,6 +1474,9 @@ public void loadCircuits(File file) throws Exception {
 						
 						CircuitFile circuitFile = FileFormat.load(lastSaveFile);
 						
+						if (circuitFile == null) {
+							throw new NullPointerException("File is empty!");
+						}
 						if (circuitFile.circuits == null) {
 							throw new NullPointerException("File missing circuits");
 						}