diff --git a/src/wrapper/clap/wrapper.rs b/src/wrapper/clap/wrapper.rs
index 73a6abce..2f511576 100644
--- a/src/wrapper/clap/wrapper.rs
+++ b/src/wrapper/clap/wrapper.rs
@@ -1772,7 +1772,10 @@ impl<P: ClapPlugin> Wrapper<P> {
 
     unsafe extern "C" fn destroy(plugin: *const clap_plugin) {
         assert!(!plugin.is_null() && !(*plugin).plugin_data.is_null());
-        drop(Arc::from_raw((*plugin).plugin_data as *mut Self));
+        let this = Arc::from_raw((*plugin).plugin_data as *mut Self);
+        nih_debug_assert_eq!(Arc::strong_count(&this), 1);
+
+        drop(this);
     }
 
     unsafe extern "C" fn activate(
diff --git a/src/wrapper/vst3/wrapper.rs b/src/wrapper/vst3/wrapper.rs
index 792afc0b..0e4183c6 100644
--- a/src/wrapper/vst3/wrapper.rs
+++ b/src/wrapper/vst3/wrapper.rs
@@ -60,6 +60,12 @@ impl<P: Vst3Plugin> Wrapper<P> {
     }
 }
 
+impl<P: Vst3Plugin> Drop for Wrapper<P> {
+    fn drop(&mut self) {
+        nih_debug_assert_eq!(Arc::strong_count(&self.inner), 1);
+    }
+}
+
 impl<P: Vst3Plugin> IPluginBase for Wrapper<P> {
     unsafe fn initialize(&self, _context: *mut c_void) -> tresult {
         // We currently don't need or allow any initialization logic