diff --git a/basic/CppunitTest_basic_macros.mk b/basic/CppunitTest_basic_macros.mk
index 9d8050e7b4e5..a67508f800a2 100644
--- a/basic/CppunitTest_basic_macros.mk
+++ b/basic/CppunitTest_basic_macros.mk
@@ -19,6 +19,7 @@ $(eval $(call gb_CppunitTest_add_exception_objects,basic_macros, \
 	basic/qa/cppunit/test_vba \
 	basic/qa/cppunit/test_global_as_new \
 	basic/qa/cppunit/test_global_array \
+	basic/qa/cppunit/test_tdf149714 \
 ))
 
 $(eval $(call gb_CppunitTest_use_libraries,basic_macros, \
diff --git a/basic/qa/cppunit/data/tdf149714.png b/basic/qa/cppunit/data/tdf149714.png
new file mode 100644
index 000000000000..d22b8451864d
Binary files /dev/null and b/basic/qa/cppunit/data/tdf149714.png differ
diff --git a/basic/qa/cppunit/test_tdf149714.cxx b/basic/qa/cppunit/test_tdf149714.cxx
new file mode 100644
index 000000000000..76713508560c
--- /dev/null
+++ b/basic/qa/cppunit/test_tdf149714.cxx
@@ -0,0 +1,86 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <sal/config.h>
+#include <basic/sbstar.hxx>
+#include <basic/sbmeth.hxx>
+#include <cppunit/extensions/HelperMacros.h>
+
+#include <unotest/directories.hxx>
+
+namespace
+{
+class TestTdf149714 : public CppUnit::TestFixture
+{
+    void testBitsPerPixel();
+
+    CPPUNIT_TEST_SUITE(TestTdf149714);
+    CPPUNIT_TEST(testBitsPerPixel);
+    CPPUNIT_TEST_SUITE_END();
+
+    StarBASICRef interpreter;
+
+    SbModuleRef Module()
+    {
+        test::Directories aDirectories;
+        OUString aDataFileName
+            = aDirectories.getURLFromSrc(u"basic/qa/cppunit/data/") + u"tdf149714.png";
+        OUString sBasic = uR"BAS(
+
+Function GetBitsPerPixelAsString As String
+    DIM oProps(0) As New "com.sun.star.beans.PropertyValue"
+    DIM oProvider, oGraphic
+
+    oProps(0).Name = "URL"
+    oProps(0).Value = "$PNGFILENAME"
+
+    oProvider = createUnoService("com.sun.star.graphic.GraphicProvider")
+    oGraphic = oProvider.queryGraphic(oProps())
+
+    GetBitsPerPixelAsString = oGraphic.BitsPerPixel
+
+End Function
+
+)BAS"_ustr;
+
+        sBasic = sBasic.replaceFirst("$PNGFILENAME", aDataFileName);
+
+        interpreter = new StarBASIC();
+        auto mod = interpreter->MakeModule("BitsPerPixel", sBasic);
+
+        CPPUNIT_ASSERT(mod->Compile());
+        CPPUNIT_ASSERT_EQUAL(ERRCODE_NONE, StarBASIC::GetErrBasic());
+        CPPUNIT_ASSERT_EQUAL(ERRCODE_NONE, SbxBase::GetError());
+        CPPUNIT_ASSERT(mod->IsCompiled());
+        return mod;
+    }
+};
+
+void TestTdf149714::testBitsPerPixel()
+{
+    auto m = Module();
+    auto GetBitsPerPixelAsString = m->FindMethod("GetBitsPerPixelAsString", SbxClassType::Method);
+    CPPUNIT_ASSERT_MESSAGE("Could not Find GetBitsPerPixelAsString in module",
+                           GetBitsPerPixelAsString != nullptr);
+
+    SbxVariableRef returned = new SbxMethod{ *GetBitsPerPixelAsString };
+    CPPUNIT_ASSERT(returned->IsString());
+
+    // Without the fix in place this would fail with:
+    // - Expected: 24
+    // - Actual:   True
+    CPPUNIT_ASSERT_EQUAL(OUString{ "24" }, returned->GetOUString());
+}
+
+// Put the test suite in the registry
+CPPUNIT_TEST_SUITE_REGISTRATION(TestTdf149714);
+
+} // namespace
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/vcl/source/graphic/UnoGraphicDescriptor.cxx b/vcl/source/graphic/UnoGraphicDescriptor.cxx
index e83ac98959f8..32ffe48fd68f 100644
--- a/vcl/source/graphic/UnoGraphicDescriptor.cxx
+++ b/vcl/source/graphic/UnoGraphicDescriptor.cxx
@@ -236,7 +236,7 @@ rtl::Reference<::comphelper::PropertySetInfo> GraphicDescriptor::createPropertyS
         { OUString( "MimeType" ), static_cast< sal_Int32 >( UnoGraphicProperty::MimeType ), cppu::UnoType< OUString >::get(), beans::PropertyAttribute::READONLY, 0 },
         { OUString( "SizePixel" ), static_cast< sal_Int32 >( UnoGraphicProperty::SizePixel ), cppu::UnoType< awt::Size >::get(), beans::PropertyAttribute::READONLY, 0 },
         { OUString( "Size100thMM" ), static_cast< sal_Int32 >( UnoGraphicProperty::Size100thMM ), cppu::UnoType< awt::Size >::get(), beans::PropertyAttribute::READONLY, 0 },
-        { OUString( "BitsPerPixel" ), static_cast< sal_Int32 >( UnoGraphicProperty::BitsPerPixel ), cppu::UnoType< sal_uInt8 >::get(), beans::PropertyAttribute::READONLY, 0 },
+        { OUString( "BitsPerPixel" ), static_cast< sal_Int32 >( UnoGraphicProperty::BitsPerPixel ), cppu::UnoType< sal_Int8 >::get(), beans::PropertyAttribute::READONLY, 0 },
         { OUString( "Transparent" ), static_cast< sal_Int32 >( UnoGraphicProperty::Transparent ), cppu::UnoType< sal_Bool >::get(), beans::PropertyAttribute::READONLY, 0 },
         { OUString( "Alpha" ), static_cast< sal_Int32 >( UnoGraphicProperty::Alpha ), cppu::UnoType< sal_Bool >::get(), beans::PropertyAttribute::READONLY, 0 },
         { OUString( "Animated" ), static_cast< sal_Int32 >( UnoGraphicProperty::Animated ), cppu::UnoType< sal_Bool >::get(), beans::PropertyAttribute::READONLY, 0 },