diff --git a/graphics/instant-meshes/files/patch-ext_nanogui_include_nanogui_common.h b/graphics/instant-meshes/files/patch-ext_nanogui_include_nanogui_common.h
new file mode 100644
index 000000000000..92b54293d8d2
--- /dev/null
+++ b/graphics/instant-meshes/files/patch-ext_nanogui_include_nanogui_common.h
@@ -0,0 +1,10 @@
+--- ext/nanogui/include/nanogui/common.h.orig	2016-10-15 20:12:12 UTC
++++ ext/nanogui/include/nanogui/common.h
+@@ -16,6 +16,7 @@
+ #include <stdint.h>
+ #include <array>
+ #include <vector>
++#include <cassert>
+ 
+ /* Set to 1 to draw boxes around widgets */
+ //#define NANOGUI_SHOW_WIDGET_BOUNDS 1
diff --git a/graphics/instant-meshes/files/patch-src_common.h b/graphics/instant-meshes/files/patch-src_common.h
new file mode 100644
index 000000000000..268b5e9cafad
--- /dev/null
+++ b/graphics/instant-meshes/files/patch-src_common.h
@@ -0,0 +1,10 @@
+--- src/common.h.orig	2017-09-06 16:18:14 UTC
++++ src/common.h
+@@ -30,6 +30,7 @@
+ #include <mutex>
+ #include <thread>
+ #include <algorithm>
++#include <cassert>
+ 
+ #define PARALLELIZE
+ #define SINGLE_PRECISION