diff --git a/src/main/java/net/fabricmc/loom/util/srg/AtRemapper.java b/src/main/java/net/fabricmc/loom/util/srg/AtRemapper.java
index ca203ff2..917866db 100644
--- a/src/main/java/net/fabricmc/loom/util/srg/AtRemapper.java
+++ b/src/main/java/net/fabricmc/loom/util/srg/AtRemapper.java
@@ -71,6 +71,7 @@ public final class AtRemapper {
 				}
 
 				if (!lines.equals(output)) {
+					Files.delete(atPath);
 					Files.write(atPath, output);
 				}
 			}