diff --git a/sci-calculators/qalculate/additional-files/qalculate_qt.rdef.in b/sci-calculators/qalculate/additional-files/qalculate_qt.rdef.in
index 8786b50ad..e376bf57f 100644
--- a/sci-calculators/qalculate/additional-files/qalculate_qt.rdef.in
+++ b/sci-calculators/qalculate/additional-files/qalculate_qt.rdef.in
@@ -1,5 +1,5 @@
 
-resource app_flags B_MULTIPLE_LAUNCH | B_ARGV_ONLY;
+resource app_flags B_SIGLE_LAUNCH;
 
 resource app_version {
 	major  = @MAJOR@,
diff --git a/sci-calculators/qalculate/patches/qalculate_qt-4.8.0.patchset b/sci-calculators/qalculate/patches/qalculate_qt-4.8.0.patchset
new file mode 100644
index 000000000..83d8428d6
--- /dev/null
+++ b/sci-calculators/qalculate/patches/qalculate_qt-4.8.0.patchset
@@ -0,0 +1,41 @@
+From 66d98a466055f22cff726b18367bfad4b880676a Mon Sep 17 00:00:00 2001
+From: Begasus <begasus@gmail.com>
+Date: Thu, 31 Aug 2023 15:07:57 +0200
+Subject: Add BINDIR target
+
+
+diff --git a/qalculate-qt.pro b/qalculate-qt.pro
+index 488329e..478950b 100644
+--- a/qalculate-qt.pro
++++ b/qalculate-qt.pro
+@@ -2,6 +2,9 @@ VERSION = 4.8.0
+ isEmpty(PREFIX) {
+ 	PREFIX = /usr/local
+ }
++isEmpty(BINDIR) {
++	BINDIR = ${PREFIX}/bin
++}
+ isEmpty(DESKTOP_DIR) {
+ 	DESKTOP_DIR = $$PREFIX/share/applications
+ }
+@@ -79,7 +82,7 @@ qtPrepareTool(LRELEASE, lrelease) for(tsfile, TRANSLATIONS) {
+ 
+ unix:!equals(COMPILE_RESOURCES,"yes"):!android:!macx {
+ 
+-	target.path = $$PREFIX/bin
++	target.path = $$BINDIR
+ 
+ 	qm.files = 	translations/qalculate-qt_ca.qm \
+ 			translations/qalculate-qt_de.qm \
+@@ -119,7 +122,7 @@ unix:!equals(COMPILE_RESOURCES,"yes"):!android:!macx {
+ 	RESOURCES = icons.qrc flags.qrc
+ } else {
+ 	RESOURCES = icons.qrc flags.qrc translations.qrc
+-	target.path = $$PREFIX/bin
++	target.path = $$BINDIR
+ 	desktop.files = data/io.github.Qalculate.qalculate-qt.desktop
+ 	desktop.path = $$DESKTOP_DIR
+ 	appicon64.files = data/64/qalculate-qt.png
+-- 
+2.37.3
+
diff --git a/sci-calculators/qalculate/qalculate_qt-4.5.1.recipe b/sci-calculators/qalculate/qalculate_qt-4.8.0.recipe
similarity index 86%
rename from sci-calculators/qalculate/qalculate_qt-4.5.1.recipe
rename to sci-calculators/qalculate/qalculate_qt-4.8.0.recipe
index 867d3eb6a..e542080df 100644
--- a/sci-calculators/qalculate/qalculate_qt-4.5.1.recipe
+++ b/sci-calculators/qalculate/qalculate_qt-4.8.0.recipe
@@ -12,8 +12,9 @@ COPYRIGHT="2003-2006, 2023 Hanna Knutsson"
 LICENSE="GNU GPL v2"
 REVISION="1"
 SOURCE_URI="https://github.com/Qalculate/qalculate-qt/releases/download/v$portVersion/qalculate-qt-$portVersion.tar.gz"
-CHECKSUM_SHA256="fee346f061606b4263f703c58efb6e9d1a952be2a3cd240b254a0ce5a6e04cf3"
+CHECKSUM_SHA256="291ed711b5513272dc0b7c4fd846b884738401da2432a2f3d1c83004af2b932a"
 SOURCE_DIR="qalculate-qt-$portVersion"
+PATCHES="qalculate_qt-$portVersion.patchset"
 ADDITIONAL_FILES="qalculate_qt.rdef.in"
 
 ARCHITECTURES="all !x86_gcc2"
@@ -21,7 +22,7 @@ SECONDARY_ARCHITECTURES="x86"
 
 PROVIDES="
 	qalculate_qt$secondaryArchSuffix = $portVersion
-	app:qalculate_qt = $portVersion
+	app:Qalculate = $portVersion
 	"
 REQUIRES="
 	haiku$secondaryArchSuffix
@@ -55,14 +56,21 @@ defineDebugInfoPackage qalculate_qt$secondaryArchSuffix \
 
 BUILD()
 {
-	qmake .
+	qmake . PREFIX=$prefix \
+		BINDIR=$appsDir \
+		MAN_DIR=$manDir \
+		TRANSLATIONS_DIR=$dataDir/Qt5/translations/qalculate-qt
 	make $jobArgs
 }
 
 INSTALL()
 {
-	mkdir -p $appsDir
-	cp qalculate-qt $appsDir/Qalculate
+	make install
+
+	mv $appsDir/qalculate-qt $appsDir/Qalculate
+
+	# we are not linux
+	rm -rf $prefix/share
 
 	local APP_SIGNATURE="application/x-vnd.qt5-qalculate_qt"
 	local MAJOR="`echo "$portVersion" | cut -d. -f1`"