diff --git a/src/citra_qt/CMakeLists.txt b/src/citra_qt/CMakeLists.txt
index 2545b5d6a..efccdbec6 100644
--- a/src/citra_qt/CMakeLists.txt
+++ b/src/citra_qt/CMakeLists.txt
@@ -106,4 +106,7 @@ if (Qt5_FOUND AND MSVC)
     )
     unset(Qt5_DLLS)
     unset(Qt5_DLL_DIR)
+    unset(Qt5_PLATFORMS_DIR)
+    unset(DLL_DEST)
+    unset(PLATFORMS)
 endif()