diff --git a/runtime/vm/native_symbol_fuchsia.cc b/runtime/vm/native_symbol_fuchsia.cc
index f81220e2c41..70aa0b53960 100644
--- a/runtime/vm/native_symbol_fuchsia.cc
+++ b/runtime/vm/native_symbol_fuchsia.cc
@@ -79,7 +79,7 @@ class NativeSymbols {
 
   NativeSymbols* next_;
   const char* const dso_name_;
-  uint32_t num_entries_;
+  intptr_t num_entries_;
   Entry* entries_;
   const char* name_table_;