diff --git a/src/modules/bootloader/main.py b/src/modules/bootloader/main.py
index efca4a1b8..ef8216361 100644
--- a/src/modules/bootloader/main.py
+++ b/src/modules/bootloader/main.py
@@ -29,17 +29,6 @@ import subprocess
 from libcalamares.utils import check_chroot_call
 
 
-def detect_firmware_type():
-    # Check for EFI variables support
-    if(os.path.exists("/sys/firmware/efi/efivars")):
-        fw_type = 'efi'
-    else:
-        fw_type = 'bios'
-
-    libcalamares.globalstorage.insert("firmwareType", fw_type)
-    libcalamares.utils.debug("Firmware type: {!s}".format(fw_type))
-
-
 def get_uuid():
     root_mount_point = libcalamares.globalstorage.value("rootMountPoint")
     print(root_mount_point)
@@ -158,7 +147,6 @@ def install_bootloader(boot_loader, fw_type):
 
 
 def run():
-    detect_firmware_type()
     boot_loader = libcalamares.globalstorage.value("bootLoader")
     fw_type = libcalamares.globalstorage.value("firmwareType")
     install_bootloader(boot_loader, fw_type)
diff --git a/src/modules/grub/main.py b/src/modules/grub/main.py
index 1e8cb7a35..000623cdc 100644
--- a/src/modules/grub/main.py
+++ b/src/modules/grub/main.py
@@ -23,17 +23,6 @@ import libcalamares
 from libcalamares.utils import check_chroot_call
 
 
-def detect_firmware_type():
-    # Check for EFI variables support
-    if(os.path.exists("/sys/firmware/efi/efivars")):
-        fw_type = 'efi'
-    else:
-        fw_type = 'bios'
-
-    libcalamares.globalstorage.insert("firmwareType", fw_type)
-    libcalamares.utils.debug("Firmware type: {!s}".format(fw_type))
-
-
 def install_grub(boot_loader, fw_type):
     if fw_type == 'efi':
         efi_directory = "/boot/efi"
@@ -49,7 +38,6 @@ def install_grub(boot_loader, fw_type):
 
 
 def run():
-    detect_firmware_type()
     boot_loader = libcalamares.globalstorage.value("bootLoader")
     fw_type = libcalamares.globalstorage.value("firmwareType")
     install_grub(boot_loader, fw_type)
diff --git a/src/modules/prepare/PrepareViewStep.cpp b/src/modules/prepare/PrepareViewStep.cpp
index ef6c24a65..58eb480f2 100644
--- a/src/modules/prepare/PrepareViewStep.cpp
+++ b/src/modules/prepare/PrepareViewStep.cpp
@@ -32,6 +32,7 @@
 #include <QDBusConnection>
 #include <QDBusInterface>
 #include <QDir>
+#include <QFile>
 #include <QFileInfo>
 #include <QLabel>
 #include <QProcess>
@@ -133,6 +134,9 @@ PrepareViewStep::PrepareViewStep( QObject* parent )
         m_nextEnabled = canGoNext;
         emit nextStatusChanged( m_nextEnabled );
 
+        if ( canGoNext )
+            detectFirmwareType();
+
         timer->deleteLater();
     } );
     timer->start( 0 );
@@ -363,3 +367,10 @@ PrepareViewStep::checkHasInternet()
     return nmState == NM_STATE_CONNECTED_GLOBAL;
 }
 
+
+void
+PrepareViewStep::detectFirmwareType()
+{
+    QString fwType = QFile::exists( "/sys/firmware/efi/efivars" ) ? "efi" : "bios";
+    Calamares::JobQueue::instance()->globalStorage()->insert( "firmwareType", fwType );
+}
diff --git a/src/modules/prepare/PrepareViewStep.h b/src/modules/prepare/PrepareViewStep.h
index 3b9ada8f2..cf13a908b 100644
--- a/src/modules/prepare/PrepareViewStep.h
+++ b/src/modules/prepare/PrepareViewStep.h
@@ -75,6 +75,7 @@ private:
     bool checkBatteryExists();
     bool checkHasPower();
     bool checkHasInternet();
+    void detectFirmwareType();
 
     QWidget* m_widget;
     qreal m_requiredStorageGB;