diff --git a/resources/desktop/com.github.rssguard.appdata.xml b/resources/desktop/com.github.rssguard.appdata.xml
index 95a19dc19..28fe819e6 100644
--- a/resources/desktop/com.github.rssguard.appdata.xml
+++ b/resources/desktop/com.github.rssguard.appdata.xml
@@ -30,7 +30,7 @@
   <url type="donation">https://martinrotter.github.io/donate/</url>
   <content_rating type="oars-1.1" />
   <releases>
-    <release version="3.8.4" date="2021-01-06"/>
+    <release version="3.8.4" date="2021-01-07"/>
   </releases>
   <content_rating type="oars-1.0">
     <content_attribute id="violence-cartoon">none</content_attribute>
diff --git a/src/rssguard/rssguard.pro b/src/rssguard/rssguard.pro
index e6242f6c0..c31b157fd 100644
--- a/src/rssguard/rssguard.pro
+++ b/src/rssguard/rssguard.pro
@@ -50,15 +50,16 @@ DEPENDPATH += $$PWD/../librssguard
 win32: LIBS += -L$$OUT_PWD/../librssguard/ -llibrssguard
 unix: LIBS += -L$$OUT_PWD/../librssguard/ -lrssguard
 
-# Prepare files for NSIS.
-SEDREPLACE = "s|@APP_VERSION@|$$APP_VERSION|g; s|@APP_WIN_ARCH@|$$APP_WIN_ARCH|g; s|@APP_REVISION@|$$APP_REVISION|g; s|@APP_NAME@|$$APP_NAME|g; s|@APP_LOW_NAME@|$$APP_LOW_NAME|g; s|@EXE_NAME@|$${APP_LOW_NAME}.exe|g; s|@PWD@|$$replace(PWD, /, \\\\)|g; s|@OUT_PWD@|$$replace(OUT_PWD, /, \\\\)|g"
-message($$MSG_PREFIX: Sed replace string: \"$$SEDREPLACE\")
+win32 {
+  # Prepare files for NSIS.
+  SEDREPLACE = "s|@APP_VERSION@|$$APP_VERSION|g; s|@APP_WIN_ARCH@|$$APP_WIN_ARCH|g; s|@APP_REVISION@|$$APP_REVISION|g; s|@APP_NAME@|$$APP_NAME|g; s|@APP_LOW_NAME@|$$APP_LOW_NAME|g; s|@EXE_NAME@|$${APP_LOW_NAME}.exe|g; s|@PWD@|$$replace(PWD, /, \\\\)|g; s|@OUT_PWD@|$$replace(OUT_PWD, /, \\\\)|g"
+  message($$MSG_PREFIX: Sed replace string: \"$$SEDREPLACE\")
 
-FULLSEDCMD = "$$shell_path($$shell_quote($$PWD/../../resources/scripts/sed/sed.exe)) -e \"$$SEDREPLACE\" \"$$shell_path($$shell_quote($$PWD/../../resources/nsis/NSIS.definitions.nsh.in))\" > \"$$shell_path($$shell_quote($$OUT_PWD/NSIS.definitions.nsh))\""
-message($$MSG_PREFIX: Full sed command: $$FULLSEDCMD)
+  FULLSEDCMD = "$$shell_path($$shell_quote($$PWD/../../resources/scripts/sed/sed.exe)) -e \"$$SEDREPLACE\" \"$$shell_path($$shell_quote($$PWD/../../resources/nsis/NSIS.definitions.nsh.in))\" > \"$$shell_path($$shell_quote($$OUT_PWD/NSIS.definitions.nsh))\""
+  message($$MSG_PREFIX: Full sed command: $$FULLSEDCMD)
 
-system(xcopy /Y $$shell_path($$shell_quote($$PWD/../../resources/nsis/NSIS.template.in)) $$shell_path($$shell_quote($$OUT_PWD/)))
-
-system($$FULLSEDCMD)
+  system(xcopy /Y $$shell_path($$shell_quote($$PWD/../../resources/nsis/NSIS.template.in)) $$shell_path($$shell_quote($$OUT_PWD/)))
+  system($$FULLSEDCMD)
+}
 
 include(../../pri/install.pri)