diff --git a/SPIRV/disassemble.cpp b/SPIRV/disassemble.cpp
index 5b30a660..4faa89ea 100644
--- a/SPIRV/disassemble.cpp
+++ b/SPIRV/disassemble.cpp
@@ -481,9 +481,11 @@ void SpirvStream::disassembleInstruction(Id resultId, Id /*typeId*/, Op opCode,
             if (opCode == OpExtInst) {
                 ExtInstSet extInstSet = GLSL450Inst;
                 const char* name = idDescriptor[stream[word - 2]].c_str();
-                if (0 == memcmp("OpenCL", name, 6)) {
+                if (strcmp("OpenCL.std", name) == 0) {
                     extInstSet = OpenCLExtInst;
-                } else if (0 == memcmp("NonSemantic.DebugPrintf", name, 23)) {
+                } else if (strcmp("OpenCL.DebugInfo.100", name) == 0) {
+                    extInstSet = OpenCLExtInst;
+                } else if (strcmp("NonSemantic.DebugPrintf", name) == 0) {
                     extInstSet = NonSemanticDebugPrintfExtInst;
                 } else if (strcmp(spv::E_SPV_AMD_shader_ballot, name) == 0 ||
                            strcmp(spv::E_SPV_AMD_shader_trinary_minmax, name) == 0 ||