diff --git a/srcpkgs/intel-gmmlib/template b/srcpkgs/intel-gmmlib/template
index de10b7059d..ad6ba012fa 100644
--- a/srcpkgs/intel-gmmlib/template
+++ b/srcpkgs/intel-gmmlib/template
@@ -5,6 +5,14 @@ revision=1
 archs="i686* x86_64*"
 wrksrc=gmmlib-intel-gmmlib-${version}
 build_style=cmake
+# We could add -DGMMLIB_ARCH=generic to make it use -march=generic
+# instead of their default of 'corei7', but it isn't necessary:
+# the baseline of CPUs supported by gmmlib all fit under 'corei7'.
+# They also add many '-msse*' flags, but they are all supported
+# as well. Since this library isn't a dependency for anything but
+# intel-media-driver, which is wholly optional and installed only on
+# systems with supported CPUs, it doesn't make sense to change the
+# compilers flag in use.
 configure_args="-Wno-dev"
 short_desc="Intel Graphics Memory Management Library"
 maintainer="Stefano Ragni <st3r4g@protonmail.com>"