diff --git a/srcpkgs/cura-engine/patches/fix-cflags.patch b/srcpkgs/cura-engine/patches/fix-cflags.patch
new file mode 100644
index 00000000000..e48a665523b
--- /dev/null
+++ b/srcpkgs/cura-engine/patches/fix-cflags.patch
@@ -0,0 +1,13 @@
+Index: CMakeLists.txt
+===================================================================
+--- CMakeLists.txt.orig
++++ CMakeLists.txt
+@@ -42,7 +42,7 @@ endif()
+ if(CMAKE_BUILD_TYPE_UPPER MATCHES "DEBUG")
+     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_DEBUG_INIT}")
+ else()
+-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_RELEASE_INIT}")
++    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DNDEBUG")
+ endif()
+ 
+ set(CMAKE_CXX_STANDARD 11)