diff --git a/sci-physics/openmodelica/files/openmodelica-1.23.1-include_algorithm.patch b/sci-physics/openmodelica/files/openmodelica-1.23.1-include_algorithm.patch
new file mode 100644
index 0000000000..404637e7ea
--- /dev/null
+++ b/sci-physics/openmodelica/files/openmodelica-1.23.1-include_algorithm.patch
@@ -0,0 +1,14 @@
+add <algorithm> to define std::unique and std::find
+Fixes compilation error with GCC 14
+
+See https://github.com/OpenModelica/OMSimulator/pull/1295
+--- a/OMSimulator/src/OMSimulatorLib/Model.cpp
++++ b/OMSimulator/src/OMSimulatorLib/Model.cpp
+@@ -43,6 +43,7 @@
+ 
+ #include "minizip.h"
+ #include <thread>
++#include <algorithm>
+ 
+ oms::Model::Model(const oms::ComRef& cref, const std::string& tempDir)
+   : cref(cref), tempDir(tempDir), resultFilename(std::string(cref) + "_res.mat")
diff --git a/sci-physics/openmodelica/openmodelica-1.23.1.ebuild b/sci-physics/openmodelica/openmodelica-1.23.1.ebuild
index 619aeb6eab..1a24909304 100644
--- a/sci-physics/openmodelica/openmodelica-1.23.1.ebuild
+++ b/sci-physics/openmodelica/openmodelica-1.23.1.ebuild
@@ -85,6 +85,7 @@ DEPEND="${RDEPEND}"
 
 PATCHES=(
 	"${FILESDIR}"/"${P}"-raw_strings.patch
+	"${FILESDIR}"/"${P}"-include_algorithm.patch
 )
 
 src_unpack() {