diff --git a/Test/baseResults/rayQuery-initialization.Error.comp.out b/Test/baseResults/rayQuery-initialization.Error.comp.out
new file mode 100644
index 00000000..6ce7fac7
--- /dev/null
+++ b/Test/baseResults/rayQuery-initialization.Error.comp.out
@@ -0,0 +1,6 @@
+rayQuery-initialization.Error.comp
+ERROR: 0:7: '=' : ray queries can only be initialized by using the rayQueryInitializeEXT intrinsic: bar
+ERROR: 1 compilation errors.  No code generated.
+
+
+SPIR-V is not generated for failed compile or link
diff --git a/Test/rayQuery-initialization.Error.comp b/Test/rayQuery-initialization.Error.comp
new file mode 100644
index 00000000..1c7757cf
--- /dev/null
+++ b/Test/rayQuery-initialization.Error.comp
@@ -0,0 +1,8 @@
+#version 460
+
+#extension GL_EXT_ray_query : enable
+
+void main () {
+    rayQueryEXT foo;
+    rayQueryEXT bar = foo;
+}
\ No newline at end of file
diff --git a/glslang/MachineIndependent/ParseHelper.cpp b/glslang/MachineIndependent/ParseHelper.cpp
index 045c8f3e..4d202260 100644
--- a/glslang/MachineIndependent/ParseHelper.cpp
+++ b/glslang/MachineIndependent/ParseHelper.cpp
@@ -6561,6 +6561,12 @@ TIntermNode* TParseContext::declareVariable(const TSourceLoc& loc, TString& iden
     type.copyArrayInnerSizes(publicType.arraySizes);
     arrayOfArrayVersionCheck(loc, type.getArraySizes());
 
+    if (initializer) {
+        if (type.getBasicType() == EbtRayQuery) {
+            error(loc, "ray queries can only be initialized by using the rayQueryInitializeEXT intrinsic:", "=", identifier.c_str());
+        }
+    }
+
     if (type.isCoopMat()) {
         intermediate.setUseVulkanMemoryModel();
         intermediate.setUseStorageBuffer();
diff --git a/gtests/Spv.FromFile.cpp b/gtests/Spv.FromFile.cpp
index 0efa77c3..309fe756 100644
--- a/gtests/Spv.FromFile.cpp
+++ b/gtests/Spv.FromFile.cpp
@@ -1,6 +1,7 @@
  //
 // Copyright (C) 2016 Google, Inc.
 // Copyright (C) 2019 ARM Limited.
+// Modifications Copyright (C) 2020 Advanced Micro Devices, Inc. All rights reserved.
 //
 // All rights reserved.
 //
@@ -238,6 +239,7 @@ INSTANTIATE_TEST_SUITE_P(
         "rayQuery-committed.Error.rgen",
         "rayQuery-allOps.comp",
         "rayQuery-allOps.frag",
+        "rayQuery-initialization.Error.comp",
         "spv.set.vert",
         "spv.double.comp",
         "spv.100ops.frag",