diff --git a/src/native/common/extal.c b/src/native/common/extal.c
index 69b1646a..c77c5ee8 100644
--- a/src/native/common/extal.c
+++ b/src/native/common/extal.c
@@ -223,6 +223,7 @@ int InitializeOpenAL() {
  */
 void DeInitializeOpenAL() {
   UnLoadOpenAL();
+  handleOAL = 0;
 }
 
 /**
diff --git a/src/native/common/org_lwjgl_opengl_CoreGL.cpp b/src/native/common/org_lwjgl_opengl_CoreGL.cpp
index fe6a51b9..0046cef2 100644
--- a/src/native/common/org_lwjgl_opengl_CoreGL.cpp
+++ b/src/native/common/org_lwjgl_opengl_CoreGL.cpp
@@ -212,7 +212,7 @@ JNIEXPORT void JNICALL Java_org_lwjgl_opengl_CoreGL_clearDepth(JNIEnv * env, job
  */
 JNIEXPORT void JNICALL Java_org_lwjgl_opengl_CoreGL_deleteLists(JNIEnv * env, jobject obj, jint p0, jint p1)
 {
-	glDeleteLists((GLint) p0, (GLint) p1);
+	glDeleteLists((GLuint) p0, (GLint) p1);
 	CHECK_GL_ERROR
 }