diff --git a/srcpkgs/icu/patches/big-endian.patch b/srcpkgs/icu/patches/big-endian.patch
new file mode 100644
index 00000000000..46e0ae45c5c
--- /dev/null
+++ b/srcpkgs/icu/patches/big-endian.patch
@@ -0,0 +1,15 @@
+Source: https://unicode-org.atlassian.net/browse/ICU-20533
+Upstream: pending(?)
+Reason: fix build on big-endian architecture
+
+--- source/data/Makefile.in	2019-04-17 21:42:15.000000000 +0200
++++ source/data/Makefile.in	2019-07-30 17:14:44.272986038 +0200
+@@ -149,6 +149,7 @@
+ ifneq ($(ICUDATA_ARCHIVE),)
+ ICUDATA_SOURCE_ARCHIVE = $(OUTDIR)/$(ICUDATA_PLATFORM_NAME).dat
+-$(ICUDATA_SOURCE_ARCHIVE): $(ICUDATA_ARCHIVE) $(OUTDIR)
++$(ICUDATA_SOURCE_ARCHIVE): $(ICUDATA_ARCHIVE)
++	$(MKINSTALLDIRS) $(OUTDIR)
+ 	$(INVOKE) $(TOOLBINDIR)/icupkg -t$(ICUDATA_CHAR) $(ICUDATA_ARCHIVE) $(ICUDATA_SOURCE_ARCHIVE)
+ endif
+ else