diff --git a/x11/vulkan/spirv-tools/pspec.xml b/x11/vulkan/spirv-tools/pspec.xml
index 5f7f137cc5..7df5fac152 100755
--- a/x11/vulkan/spirv-tools/pspec.xml
+++ b/x11/vulkan/spirv-tools/pspec.xml
@@ -13,34 +13,38 @@
         <Summary>API and commands for processing SPIR-V modules</Summary>
         <Description>API and commands for processing SPIR-V modules</Description>
         <Archive sha1sum="9c4b44c23ee35f38324774dfd019925b866852aa" type="targz">https://github.com/KhronosGroup/SPIRV-Tools/archive/v2019.4.tar.gz</Archive>
-		<Archive sha1sum="e7911f27a13c61e9d8c13fe7b0df5f1a883e972e" type="targz" target="SPIRV-Tools-2019.4">https://github.com/KhronosGroup/SPIRV-Headers/archive/1.5.1.corrected.tar.gz</Archive>
+        <Archive sha1sum="e7911f27a13c61e9d8c13fe7b0df5f1a883e972e" type="targz" target="SPIRV-Tools-2019.4">https://github.com/KhronosGroup/SPIRV-Headers/archive/1.5.1.corrected.tar.gz</Archive>
+        <BuildDependencies>
+        <Dependency>cmake</Dependency>
+            <Dependency>python3-devel</Dependency>
+        </BuildDependencies>
     </Source>
 
     <Package>
         <Name>spirv-tools</Name>
         <Files>
             <Path fileType="executable">/usr/bin</Path>
-			<Path fileType="library">/usr/lib</Path>
+            <Path fileType="library">/usr/lib</Path>
             <Path fileType="data">/usr/share</Path>
-			<Path fileType="doc">/usr/share/doc</Path>
+            <Path fileType="doc">/usr/share/doc</Path>
         </Files>
     </Package>
 	
-	<Package>
+    <Package>
         <Name>spirv-tools-32bit</Name>
-		<BuildType>emul32</BuildType>
-		<PartOf>emul32</PartOf>
+        <BuildType>emul32</BuildType>
+        <PartOf>emul32</PartOf>
         <Files>
-			<Path fileType="library">/usr/lib32</Path>
+            <Path fileType="library">/usr/lib32</Path>
         </Files>
     </Package>
     
      <Package>
         <Name>spirv-tools-devel</Name>
         <Files>
-			<Path fileType="header">/usr/include</Path>
-			<Path fileType="data">/usr/lib/pkgconfig</Path>
-			<Path fileType="data">/usr/lib32/pkgconfig</Path>
+            <Path fileType="header">/usr/include</Path>
+            <Path fileType="data">/usr/lib/pkgconfig</Path>
+            <Path fileType="data">/usr/lib32/pkgconfig</Path>
         </Files>
     </Package>