diff --git a/SPIRV/GlslangToSpv.cpp b/SPIRV/GlslangToSpv.cpp
index 3b494790..164fa230 100755
--- a/SPIRV/GlslangToSpv.cpp
+++ b/SPIRV/GlslangToSpv.cpp
@@ -7015,7 +7015,8 @@ void GlslangToSpv(const glslang::TIntermediate& intermediate, std::vector<unsign
     it.dumpSpv(spirv);
 
 #if ENABLE_OPT
-    SpirvToolsValidate(intermediate, spirv, logger);
+    if (options->validate)
+        SpirvToolsValidate(intermediate, spirv, logger);
 
     // If from HLSL, run spirv-opt to "legalize" the SPIR-V for Vulkan
     // eg. forward and remove memory writes of opaque types.
diff --git a/SPIRV/SpvTools.h b/SPIRV/SpvTools.h
index 7a164387..08bcf3a2 100755
--- a/SPIRV/SpvTools.h
+++ b/SPIRV/SpvTools.h
@@ -51,11 +51,12 @@ namespace glslang {
 
 struct SpvOptions {
     SpvOptions() : generateDebugInfo(false), disableOptimizer(true),
-        optimizeSize(false), disassemble(false) { }
+        optimizeSize(false), disassemble(false), validate(false) { }
     bool generateDebugInfo;
     bool disableOptimizer;
     bool optimizeSize;
     bool disassemble;
+    bool validate;
 };
 
 #if ENABLE_OPT
diff --git a/StandAlone/StandAlone.cpp b/StandAlone/StandAlone.cpp
index 35b27b21..38ba597d 100755
--- a/StandAlone/StandAlone.cpp
+++ b/StandAlone/StandAlone.cpp
@@ -103,6 +103,7 @@ enum TOptions {
 };
 bool targetHlslFunctionality1 = false;
 bool SpvToolsDisassembler = false;
+bool SpvToolsValidate = false;
 
 //
 // Return codes from main/exit().
@@ -514,6 +515,8 @@ void ProcessArguments(std::vector<std::unique_ptr<glslang::TWorkItem>>& workItem
                         break;
                     } else if (lowerword == "spirv-dis") {
                         SpvToolsDisassembler = true;
+                    } else if (lowerword == "spirv-val") {
+                        SpvToolsValidate = true;
                     } else if (lowerword == "stdin") {
                         Options |= EOptionStdin;
                         shaderStageName = argv[1];
@@ -979,6 +982,7 @@ void CompileAndLinkShaderUnits(std::vector<ShaderCompUnit> compUnits)
                     spvOptions.disableOptimizer = (Options & EOptionOptimizeDisable) != 0;
                     spvOptions.optimizeSize = (Options & EOptionOptimizeSize) != 0;
                     spvOptions.disassemble = SpvToolsDisassembler;
+                    spvOptions.validate = SpvToolsValidate;
                     glslang::GlslangToSpv(*program.getIntermediate((EShLanguage)stage), spirv, &logger, &spvOptions);
 
                     // Dump the spv to a file or stdout, etc., but only if not doing
@@ -1421,6 +1425,7 @@ void usage()
            "  --shift-cbuffer-binding | --scb   synonyms for --shift-UBO-binding\n"
            "  --spirv-dis                       output standard-form disassembly; works only\n"
            "                                    when a SPIR-V generation option is also used\n"
+           "  --spirv-val                       execute the SPIRV-Tools validator\n"
            "  --source-entrypoint <name>        the given shader source function is\n"
            "                                    renamed to be the <name> given in -e\n"
            "  --sep                             synonym for --source-entrypoint\n"
diff --git a/Test/runtests b/Test/runtests
index ddd77ce8..d36f3a8c 100755
--- a/Test/runtests
+++ b/Test/runtests
@@ -130,13 +130,13 @@ diff -b $BASEDIR/spv.looseUniformNoLoc.vert.out $TARGETDIR/spv.looseUniformNoLoc
 # Testing debug information
 #
 echo Testing SPV Debug Information
-$EXE -g --relaxed-errors --suppress-warnings --aml --amb --hlsl-offsets --nsf \
+$EXE -g --relaxed-errors --suppress-warnings --aml --amb --hlsl-offsets --nsf --spirv-val \
      -G -H spv.debugInfo.frag --rsb frag 3 > $TARGETDIR/spv.debugInfo.frag.out
 diff -b $BASEDIR/spv.debugInfo.frag.out $TARGETDIR/spv.debugInfo.frag.out || HASERROR=1
-$EXE -g -Od --target-env vulkan1.1 --relaxed-errors --suppress-warnings --aml --hlsl-offsets --nsf \
+$EXE -g -Od --target-env vulkan1.1 --relaxed-errors --suppress-warnings --aml --hlsl-offsets --nsf --spirv-val \
      -G -H spv.debugInfo.frag --rsb frag 3 > $TARGETDIR/spv.debugInfo.1.1.frag.out
 diff -b $BASEDIR/spv.debugInfo.1.1.frag.out $TARGETDIR/spv.debugInfo.1.1.frag.out || HASERROR=1
-$EXE -g -D -Od -e newMain -g --amb --aml --fua --hlsl-iomap --nsf --sib 1 --ssb 2 --sbb 3 --stb 4 --suavb 5 --sub 6 \
+$EXE -g -D -Od -e newMain -g --amb --aml --fua --hlsl-iomap --nsf --spirv-val --sib 1 --ssb 2 --sbb 3 --stb 4 --suavb 5 --sub 6 \
      --sep origMain -H -Od spv.hlslDebugInfo.vert --rsb vert t0 0 0 > $TARGETDIR/spv.hlslDebugInfo.frag.out
 diff -b $BASEDIR/spv.hlslDebugInfo.frag.out $TARGETDIR/spv.hlslDebugInfo.frag.out || HASERROR=1
 
diff --git a/gtests/Link.FromFile.Vk.cpp b/gtests/Link.FromFile.Vk.cpp
index beb79e18..22892f0b 100755
--- a/gtests/Link.FromFile.Vk.cpp
+++ b/gtests/Link.FromFile.Vk.cpp
@@ -79,6 +79,7 @@ TEST_P(LinkTestVulkan, FromFile)
         std::vector<uint32_t> spirv_binary;
         glslang::SpvOptions options;
         options.disableOptimizer = true;
+        options.validate = true;
         glslang::GlslangToSpv(*program.getIntermediate(shaders.front()->getStage()),
                                 spirv_binary, &logger, &options);
 
diff --git a/gtests/TestFixture.h b/gtests/TestFixture.h
index a58978d3..3329fa3c 100755
--- a/gtests/TestFixture.h
+++ b/gtests/TestFixture.h
@@ -243,6 +243,7 @@ public:
             std::vector<uint32_t> spirv_binary;
             glslang::SpvOptions options;
             options.disableOptimizer = !enableOptimizer;
+            options.validate = true;
             glslang::GlslangToSpv(*program.getIntermediate(stage),
                                   spirv_binary, &logger, &options);
 
@@ -298,8 +299,10 @@ public:
 
         if (success && (controls & EShMsgSpvRules)) {
             std::vector<uint32_t> spirv_binary;
+            glslang::SpvOptions options;
+            options.validate = true;
             glslang::GlslangToSpv(*program.getIntermediate(stage),
-                                  spirv_binary, &logger);
+                                  spirv_binary, &logger, &options);
 
             std::ostringstream disassembly_stream;
             spv::Parameterize();
@@ -338,8 +341,10 @@ public:
 
         if (success && (controls & EShMsgSpvRules)) {
             std::vector<uint32_t> spirv_binary;
+            glslang::SpvOptions options;
+            options.validate = true;
             glslang::GlslangToSpv(*program.getIntermediate(stage),
-                                  spirv_binary, &logger);
+                                  spirv_binary, &logger, &options);
 
             spv::spirvbin_t(0 /*verbosity*/).remap(spirv_binary, remapOptions);