diff --git a/clang.spec b/clang.spec
index 77a1a87..9bc65c1 100644
--- a/clang.spec
+++ b/clang.spec
@@ -80,7 +80,7 @@
 
 Name:		%pkg_name
 Version:	%{clang_version}%{?rc_ver:~rc%{rc_ver}}%{?llvm_snapshot_version_suffix:~%{llvm_snapshot_version_suffix}}
-Release:	3%{?dist}
+Release:	4%{?dist}
 Summary:	A C language family front-end for LLVM
 
 License:	NCSA
@@ -427,6 +427,7 @@ CFLAGS="$CFLAGS -Wno-address -Wno-nonnull -Wno-maybe-uninitialized"
 	-DLLVM_ENABLE_EH=ON \
 	-DLLVM_ENABLE_RTTI=ON \
 	-DLLVM_BUILD_DOCS=ON \
+	-DLLVM_RAM_PER_COMPILE_JOB=3000 \
 	-DLLVM_ENABLE_SPHINX=ON \
 	-DCLANG_LINK_CLANG_DYLIB=ON \
 	-DSPHINX_WARNINGS_AS_ERRORS=OFF \
@@ -729,6 +730,9 @@ LD_LIBRARY_PATH=%{buildroot}/%{install_libdir} %{__ninja} %{_smp_mflags} check-a
 
 %endif
 %changelog
+* Fri May 24 2024 Tom Stellard <tstellar@redhat.com> - 18.1.2-4
+- Limit number of compile jobs to avoid running out of memory
+
 * Thu Mar 21 2024 Tom Stellrd <tstellar@redhat.com> - 18.1.2-1
 - 18.1.2 Release