diff --git a/core/src/drop.h b/core/src/drop.h
index bc237d8..7b51877 100644
--- a/core/src/drop.h
+++ b/core/src/drop.h
@@ -8,7 +8,7 @@ typedef struct {
 } IDrop;
 
 typedef struct {
-    void const* data;
+    void* data;
     IDrop const* tc;
 } Drop;