diff --git a/libraries/shared/src/GPUIdent.cpp b/libraries/shared/src/GPUIdent.cpp
index 02f92d87e7..a78163b570 100644
--- a/libraries/shared/src/GPUIdent.cpp
+++ b/libraries/shared/src/GPUIdent.cpp
@@ -10,6 +10,7 @@
 
 #include <QtCore/QtGlobal>
 
+
 #ifdef Q_OS_WIN
 #include <atlbase.h>
 #include <Wbemidl.h>
@@ -139,7 +140,7 @@ GPUIdent* GPUIdent::ensureQuery(const QString& vendor, const QString& renderer)
                 var.ChangeType(CIM_UINT64);  // We're going to receive some integral type, but it might not be uint.
                 // We might be hosed here. The parameter is documented to be UINT32, but that's only 4 GB!
                 const ULONGLONG BYTES_PER_MEGABYTE = 1024 * 1024;
-                _dedicatedMemoryMB = (uint) (var.ullVal / BYTES_PER_MEGABYTE);
+                _dedicatedMemoryMB = (uint64_t) (var.ullVal / BYTES_PER_MEGABYTE);
             }
             else {
                 qCDebug(shared) << "Unable to get video AdapterRAM";
diff --git a/libraries/shared/src/GPUIdent.h b/libraries/shared/src/GPUIdent.h
index 4e844b0e54..8615e61b08 100644
--- a/libraries/shared/src/GPUIdent.h
+++ b/libraries/shared/src/GPUIdent.h
@@ -14,17 +14,19 @@
 #ifndef hifi_GPUIdent_h
 #define hifi_GPUIdent_h
 
+#include <cstdint>
+
 class GPUIdent
 {
 public:
-    unsigned int getMemory() { return _dedicatedMemoryMB; }
+    uint64_t getMemory() { return _dedicatedMemoryMB; }
     QString getName() { return _name; }
     QString getDriver() { return _driver; }
     bool isValid() { return _isValid; }
     // E.g., GPUIdent::getInstance()->getMemory();
     static GPUIdent* getInstance(const QString& vendor = "", const QString& renderer = "") { return _instance.ensureQuery(vendor, renderer); }
 private:
-    uint _dedicatedMemoryMB { 0 };
+    uint64_t _dedicatedMemoryMB { 0 };
     QString _name { "" };
     QString _driver { "" };
     bool _isQueried { false };