diff --git a/src/qt/bitcoin.cpp b/src/qt/bitcoin.cpp
index eaaaaeb904..f7db865e32 100644
--- a/src/qt/bitcoin.cpp
+++ b/src/qt/bitcoin.cpp
@@ -315,11 +315,9 @@ void BitcoinApplication::parameterSetup()
     InitParameterInteraction(gArgs);
 }
 
-void BitcoinApplication::InitializePruneSetting(bool prune)
+void BitcoinApplication::InitPruneSetting(int64_t prune_MiB)
 {
-    // If prune is set, intentionally override existing prune size with
-    // the default size since this is called when choosing a new datadir.
-    optionsModel->SetPruneTargetGB(prune ? DEFAULT_PRUNE_TARGET_GB : 0, true);
+    optionsModel->SetPruneTargetGB(PruneMiBtoGB(prune_MiB), true);
 }
 
 void BitcoinApplication::requestInitialize()
@@ -508,9 +506,9 @@ int GuiMain(int argc, char* argv[])
     /// 5. Now that settings and translations are available, ask user for data directory
     // User language is set up: pick a data directory
     bool did_show_intro = false;
-    bool prune = false; // Intro dialog prune check box
+    int64_t prune_MiB = 0;  // Intro dialog prune configuration
     // Gracefully exit if the user cancels
-    if (!Intro::showIfNeeded(did_show_intro, prune)) return EXIT_SUCCESS;
+    if (!Intro::showIfNeeded(did_show_intro, prune_MiB)) return EXIT_SUCCESS;
 
     /// 6. Determine availability of data directory and parse bitcoin.conf
     /// - Do not call GetDataDir(true) before this step finishes
@@ -594,7 +592,7 @@ int GuiMain(int argc, char* argv[])
 
     if (did_show_intro) {
         // Store intro dialog settings other than datadir (network specific)
-        app.InitializePruneSetting(prune);
+        app.InitPruneSetting(prune_MiB);
     }
 
     if (gArgs.GetBoolArg("-splash", DEFAULT_SPLASHSCREEN) && !gArgs.GetBoolArg("-min", false))
diff --git a/src/qt/bitcoin.h b/src/qt/bitcoin.h
index 69e0a5921e..17ea67ba66 100644
--- a/src/qt/bitcoin.h
+++ b/src/qt/bitcoin.h
@@ -68,7 +68,7 @@ public:
     /// Create options model
     void createOptionsModel(bool resetSettings);
     /// Initialize prune setting
-    void InitializePruneSetting(bool prune);
+    void InitPruneSetting(int64_t prune_MiB);
     /// Create main window
     void createWindow(const NetworkStyle *networkStyle);
     /// Create splash screen
diff --git a/src/qt/intro.cpp b/src/qt/intro.cpp
index 235722d091..437c941f70 100644
--- a/src/qt/intro.cpp
+++ b/src/qt/intro.cpp
@@ -182,7 +182,7 @@ void Intro::setDataDirectory(const QString &dataDir)
     }
 }
 
-bool Intro::showIfNeeded(bool& did_show_intro, bool& prune)
+bool Intro::showIfNeeded(bool& did_show_intro, int64_t& prune_MiB)
 {
     did_show_intro = false;
 
@@ -233,7 +233,7 @@ bool Intro::showIfNeeded(bool& did_show_intro, bool& prune)
         }
 
         // Additional preferences:
-        prune = intro.ui->prune->isChecked();
+        prune_MiB = intro.ui->prune->isChecked() ? PruneGBtoMiB(intro.m_prune_target_gb) : int64_t(0);
 
         settings.setValue("strDataDir", dataDir);
         settings.setValue("fReset", false);
diff --git a/src/qt/intro.h b/src/qt/intro.h
index 51f42de7ac..67888343a5 100644
--- a/src/qt/intro.h
+++ b/src/qt/intro.h
@@ -47,7 +47,7 @@ public:
      * @note do NOT call global GetDataDir() before calling this function, this
      * will cause the wrong path to be cached.
      */
-    static bool showIfNeeded(bool& did_show_intro, bool& prune);
+    static bool showIfNeeded(bool& did_show_intro, int64_t& prune_MiB);
 
 Q_SIGNALS:
     void requestCheck();