diff --git a/Mesa-drivers.spec b/Mesa-drivers.spec
index 045091c..1f8d9ae 100644
--- a/Mesa-drivers.spec
+++ b/Mesa-drivers.spec
@@ -792,7 +792,7 @@ sed -i -e s/cpp_std=gnu++11/cpp_std=gnu++14/g meson.build
 %build
 # try to avoid OOM on ppc64 (boo#1194739)
 %ifarch ppc64 ppc64le
-%limit_build -m 12000
+%limit_build -m 750
 %endif
 
 egl_platforms=x11,wayland
diff --git a/Mesa.spec b/Mesa.spec
index 93108df..7a391a9 100644
--- a/Mesa.spec
+++ b/Mesa.spec
@@ -791,7 +791,7 @@ sed -i -e s/cpp_std=gnu++11/cpp_std=gnu++14/g meson.build
 %build
 # try to avoid OOM on ppc64 (boo#1194739)
 %ifarch ppc64 ppc64le
-%limit_build -m 12000
+%limit_build -m 750
 %endif
 
 egl_platforms=x11,wayland