diff --git a/install.pri b/install.pri
index f5a0a16a5..072275836 100644
--- a/install.pri
+++ b/install.pri
@@ -78,10 +78,7 @@ INSTALLS += qt5_target
 
 ############### Install Qt5 audio plugins ##############
 
-win32: {
-    qt5_audio_plugins_target.files *= $$[QT_INSTALL_PLUGINS]/audio/*$${DLL_DEBUG_SUFFIX}.dll
-    qt5_audio_plugins_target.files *= $$[QT_INSTALL_PLUGINS]/audio/*$${DLL_DEBUG_SUFFIX}.dll.bak
-}
+win32: qt5_audio_plugins_target.files *= $$[QT_INSTALL_PLUGINS]/audio/*$${DLL_DEBUG_SUFFIX}.dll
 else:macx: qt5_audio_plugins_target.files *= $$[QT_INSTALL_PLUGINS]/audio/*.dylib
 else:unix:qt5_audio_plugins_target.files *= $$[QT_INSTALL_PLUGINS]/audio/*.so
 qt5_audio_plugins_target.path = $${PREFIX}/bin/audio
diff --git a/installer/installbuilder/qt5-binaries.xml b/installer/installbuilder/qt5-binaries.xml
index 90af2da13..f9eef3f32 100644
--- a/installer/installbuilder/qt5-binaries.xml
+++ b/installer/installbuilder/qt5-binaries.xml
@@ -196,7 +196,9 @@
             <platforms>all</platforms>
             <distributionFileList>
                 <distributionDirectory>
+                    <allowWildcards>1</allowWildcards>
                     <origin>../../dist/bin/audio</origin>
+                    <excludeFiles>*/*wasapi*.dll</excludeFiles>
                 </distributionDirectory>
                 <distributionDirectory>
                     <origin>../../dist/bin/bearer</origin>