diff --git a/office/misc/libetonyek/files/libetonyek-build-fix.patch b/office/misc/libetonyek/files/libetonyek-build-fix.patch
new file mode 100644
index 0000000000..ac56d173db
--- /dev/null
+++ b/office/misc/libetonyek/files/libetonyek-build-fix.patch
@@ -0,0 +1,11 @@
+diff -Nru libetonyek-0.1.9.orig/src/lib/NUM3Parser.cpp libetonyek-0.1.9/src/lib/NUM3Parser.cpp
+--- libetonyek-0.1.9.orig/src/lib/NUM3Parser.cpp	2018-12-28 20:45:35.000000000 +0300
++++ libetonyek-0.1.9/src/lib/NUM3Parser.cpp	2021-03-10 19:02:13.203978181 +0300
+@@ -8,6 +8,7 @@
+  */
+ 
+ #include <functional>
++#include <algorithm>
+ 
+ #include "NUM3Parser.h"
+ 
diff --git a/office/misc/libetonyek/pspec.xml b/office/misc/libetonyek/pspec.xml
index cdbe9708ec..95ab337d50 100644
--- a/office/misc/libetonyek/pspec.xml
+++ b/office/misc/libetonyek/pspec.xml
@@ -26,7 +26,7 @@
         </BuildDependencies>
         <Archive sha1sum="b98862359b44f6838246428a482c442ad3bb67e4" type="tarxz">https://dev-www.libreoffice.org/src/libetonyek/libetonyek-0.1.9.tar.xz</Archive>
         <Patches>
-<!--             <Patch level="1">libetonyek-0.1.6-mdds-1.2.patch</Patch> -->
+            <Patch level="1">libetonyek-build-fix.patch</Patch>
         </Patches>
     </Source>