diff --git a/chromium.spec b/chromium.spec
index 06d42035..532c874a 100644
--- a/chromium.spec
+++ b/chromium.spec
@@ -146,7 +146,7 @@ Name:		chromium%{chromium_channel}%{?freeworld:-freeworld}
 Name:		chromium%{chromium_channel}
 %endif
 Version:	%{majorversion}.0.3538.77
-Release:	1%{?dist}
+Release:	2%{?dist}
 Summary:	A WebKit (Blink) powered web browser
 Url:		http://www.chromium.org/Home
 License:	BSD and LGPLv2+ and ASL 2.0 and IJG and MIT and GPLv2+ and ISC and OpenSSL and (MPLv1.1 or GPLv2 or LGPLv2)
@@ -999,7 +999,7 @@ CHROMIUM_CORE_GN_DEFINES+=' use_custom_libcxx=false'
 %ifarch aarch64
 CHROMIUM_CORE_GN_DEFINES+=' target_cpu="arm64"'
 %endif
-CHROMIUM_CORE_GN_DEFINES+=' use_jumbo_build=true jumbo_file_merge_limit=12'
+CHROMIUM_CORE_GN_DEFINES+=' use_jumbo_build=true jumbo_file_merge_limit=8'
 export CHROMIUM_CORE_GN_DEFINES
 
 CHROMIUM_BROWSER_GN_DEFINES=""
@@ -1790,6 +1790,9 @@ getent group chrome-remote-desktop >/dev/null || groupadd -r chrome-remote-deskt
 
 
 %changelog
+* Mon Nov  5 2018 Tom Callaway <spot@fedoraproject.org> - 70.0.3538.77-2
+- drop jumbo_file_merge_limit to 8 to (hopefully) avoid OOMs on aarch64
+
 * Fri Nov  2 2018 Tom Callaway <spot@fedoraproject.org> - 70.0.3538.77-1
 - .77 came out while I was working on this. :/