diff --git a/jni/SafeArray.cpp b/jni/SafeArray.cpp
index 2e53a46..f6f74f6 100644
--- a/jni/SafeArray.cpp
+++ b/jni/SafeArray.cpp
@@ -190,7 +190,7 @@ JNIEXPORT void JNICALL Java_com_jacob_com_SafeArray_destroy
     jfieldID jf = env->GetFieldID(saClass, V_FLD, "J");
     VariantClear(v);
     delete v;
-    env->SetIntField(_this, jf, 0ll);
+    env->SetLongField(_this, jf, 0ll);
   }
 }
 
diff --git a/jni/Variant.cpp b/jni/Variant.cpp
index 735775d..ab118ad 100644
--- a/jni/Variant.cpp
+++ b/jni/Variant.cpp
@@ -67,7 +67,7 @@ JNIEXPORT void JNICALL Java_com_jacob_com_Variant_release
     }
     VariantClear(v);
     delete v;
-    env->SetIntField(_this, jf, (unsigned int)0);
+    env->SetLongField(_this, jf, 0ll);
   }
 }