diff --git a/_constraints b/_constraints
new file mode 100644
index 0000000..51762ba
--- /dev/null
+++ b/_constraints
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<constraints>
+  <hardware>
+    <memoryperjob>
+      <size unit="M">2000</size>
+    </memoryperjob>
+  </hardware>
+</constraints>
\ No newline at end of file
diff --git a/vulkan-validationlayers.changes b/vulkan-validationlayers.changes
index 35922d2..b336b5c 100644
--- a/vulkan-validationlayers.changes
+++ b/vulkan-validationlayers.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Aug 20 09:09:54 UTC 2020 - Martin Liška <mliska@suse.cz>
+
+- Use memoryperjob constraint instead of %limit_build macro.
+
 -------------------------------------------------------------------
 Wed Aug 19 11:24:44 UTC 2020 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/vulkan-validationlayers.spec b/vulkan-validationlayers.spec
index 28130c6..9b7faab 100644
--- a/vulkan-validationlayers.spec
+++ b/vulkan-validationlayers.spec
@@ -31,7 +31,6 @@ Patch1:         ver.diff
 BuildRequires:  cmake >= 3.4
 BuildRequires:  gcc-c++ >= 4.8
 BuildRequires:  glslang-devel >= 8.13.3727
-BuildRequires:  memory-constraints
 BuildRequires:  pkg-config
 BuildRequires:  python3-base
 BuildRequires:  spirv-headers
@@ -71,7 +70,6 @@ This package contains support files for the VkLayer utility library.
 perl -i -pe 's{\@PACKAGE_VERSION\@}{%version}' CMakeLists.txt
 
 %build
-%limit_build -m 2000
 %cmake -DGLSLANG_INSTALL_DIR="%_bindir" \
 	-DSPIRV_HEADERS_INSTALL_DIR="%_includedir" \
 	-DBUILD_LAYER_SUPPORT_FILES=ON