diff --git a/dcmtk.diff b/dcmtk.diff
new file mode 100644
index 0000000..5baee90
--- /dev/null
+++ b/dcmtk.diff
@@ -0,0 +1,11 @@
+diff -U 3 -dHrN -- a/OrthancFramework/Resources/CMake/DcmtkConfiguration.cmake b/OrthancFramework/Resources/CMake/DcmtkConfiguration.cmake
+--- a/OrthancFramework/Resources/CMake/DcmtkConfiguration.cmake	2024-01-31 12:33:17.000000000 +0100
++++ b/OrthancFramework/Resources/CMake/DcmtkConfiguration.cmake	2024-02-07 18:49:46.121815912 +0100
+@@ -302,6 +302,7 @@
+       /usr/share/libdcmtk18
+       /usr/share/libdcmtk19
+       /usr/share/libdcmtk20
++      /usr/share/dcmtk-3.6.8      
+       /usr/local/share/dcmtk
+       /usr/local/share/dcmtk-3.6.8
+       )
diff --git a/orthanc.changes b/orthanc.changes
index 9ccdc4e..e2d7c91 100644
--- a/orthanc.changes
+++ b/orthanc.changes
@@ -2,6 +2,7 @@
 Fri Feb  2 11:54:18 UTC 2024 - Axel Braun <axel.braun@gmx.de>
 
 - version 1.12.3
+  * dcmtk.diff added to fix TW build issue
   * Performance of databases:
     - At startup, if using a database plugin, displays the latency to access the DB.
     - Added support for new DB primitives to enable the "READ COMMITTED"
diff --git a/orthanc.spec b/orthanc.spec
index da39732..efeb17c 100644
--- a/orthanc.spec
+++ b/orthanc.spec
@@ -38,7 +38,7 @@ Source11:       https://orthanc.osimis.io/ThirdPartyDownloads/dicom-web/axios-0.
 Source12:       https://orthanc.osimis.io/ThirdPartyDownloads/jquery-3.4.1.min.js
 Source13:       https://orthanc.osimis.io/ThirdPartyDownloads/dicom-web/vuejs-2.6.10.tar.gz
 
-## Patch0:         libboost.diff
+Patch0:         dcmtk.diff
 BuildRequires:  civetweb-devel
 BuildRequires:  cmake >= 2.8.0
 BuildRequires:  curl-devel
@@ -125,7 +125,7 @@ This package includes the source files for Orthanc. Use it in conjunction with t
 
 %prep
 %setup -q -n Orthanc-%{version}
-## %autopatch -p1
+%autopatch -p1
 
 cp %{S:1} %{S:2} .