diff --git a/dgl/src/pugl-extra/haiku.cpp b/dgl/src/pugl-extra/haiku.cpp
index 13db156a..bc96cca4 100644
--- a/dgl/src/pugl-extra/haiku.cpp
+++ b/dgl/src/pugl-extra/haiku.cpp
@@ -246,7 +246,7 @@ puglPostRedisplayRect(PuglView* const view, const PuglRect rect)
 }
 
 PuglNativeView
-puglGetNativeView(PuglView* const view)
+puglGetNativeView(const PuglView* const view)
 {
   return 0;
 }
diff --git a/dgl/src/pugl-extra/wasm.c b/dgl/src/pugl-extra/wasm.c
index aafe622b..7b8f43de 100644
--- a/dgl/src/pugl-extra/wasm.c
+++ b/dgl/src/pugl-extra/wasm.c
@@ -977,7 +977,7 @@ puglObscureRegion(PuglView*      view,
 }
 
 PuglNativeView
-puglGetNativeView(PuglView* const view)
+puglGetNativeView(const PuglView* const view)
 {
   return 0;
 }