diff --git a/src/coreclr/jit/compiler.h b/src/coreclr/jit/compiler.h
index 9b6f323fec8fb4..9894611a963450 100644
--- a/src/coreclr/jit/compiler.h
+++ b/src/coreclr/jit/compiler.h
@@ -3358,6 +3358,14 @@ class Compiler
     GenTreeCall* gtNewHelperCallNode(
         unsigned helper, var_types type, GenTree* arg1 = nullptr, GenTree* arg2 = nullptr, GenTree* arg3 = nullptr, GenTree* arg4 = nullptr);
 
+#ifdef TARGET_WASM
+    // On wasm these helpers return void* (InitHelpers.InitClass/InitInstantiatedClass). Model them as
+    // value-returning so the call_indirect signature matches the compiled managed helper; the value is unused.
+    static constexpr var_types HelperInitClassRetType = TYP_I_IMPL;
+#else
+    static constexpr var_types HelperInitClassRetType = TYP_VOID;
+#endif // TARGET_WASM
+
     GenTreeCall* gtNewVirtualFunctionLookupHelperCallNode(
         unsigned helper, var_types type, GenTree* thisPtr, GenTree* methHnd, GenTree* clsHnd = nullptr);
 
diff --git a/src/coreclr/jit/flowgraph.cpp b/src/coreclr/jit/flowgraph.cpp
index 68cbb0d2887108..ec6b7980c3a11c 100644
--- a/src/coreclr/jit/flowgraph.cpp
+++ b/src/coreclr/jit/flowgraph.cpp
@@ -766,7 +766,7 @@ GenTreeCall* Compiler::fgGetStaticsCCtorHelper(CORINFO_CLASS_HANDLE cls, CorInfo
             break;
 
         case CORINFO_HELP_INITCLASS:
-            type = TYP_VOID;
+            type = HelperInitClassRetType;
             break;
 
         default:
diff --git a/src/coreclr/jit/importer.cpp b/src/coreclr/jit/importer.cpp
index f15a3409cbd529..90396e6a294bc5 100644
--- a/src/coreclr/jit/importer.cpp
+++ b/src/coreclr/jit/importer.cpp
@@ -3909,7 +3909,7 @@ GenTree* Compiler::impInitClass(CORINFO_RESOLVED_TOKEN* pResolvedToken)
 
     if (runtimeLookup)
     {
-        node = gtNewHelperCallNode(CORINFO_HELP_INITCLASS, TYP_VOID, node);
+        node = gtNewHelperCallNode(CORINFO_HELP_INITCLASS, HelperInitClassRetType, node);
     }
     else
     {
diff --git a/src/coreclr/jit/morph.cpp b/src/coreclr/jit/morph.cpp
index e7d6da0e5c1719..76579dbf14bc71 100644
--- a/src/coreclr/jit/morph.cpp
+++ b/src/coreclr/jit/morph.cpp
@@ -14674,21 +14674,22 @@ GenTree* Compiler::fgInitThisClass()
                 vtTree             = gtNewMethodTableLookup(vtTree);
                 GenTree* methodHnd = gtNewIconEmbMethHndNode(info.compMethodHnd);
 
-                return gtNewHelperCallNode(CORINFO_HELP_INITINSTCLASS, TYP_VOID, vtTree, methodHnd);
+                return gtNewHelperCallNode(CORINFO_HELP_INITINSTCLASS, HelperInitClassRetType, vtTree, methodHnd);
             }
 
             case CORINFO_LOOKUP_CLASSPARAM:
             {
                 GenTree* vtTree = gtNewLclvNode(info.compTypeCtxtArg, TYP_I_IMPL);
                 vtTree->gtFlags |= GTF_VAR_CONTEXT;
-                return gtNewHelperCallNode(CORINFO_HELP_INITCLASS, TYP_VOID, vtTree);
+                return gtNewHelperCallNode(CORINFO_HELP_INITCLASS, HelperInitClassRetType, vtTree);
             }
 
             case CORINFO_LOOKUP_METHODPARAM:
             {
                 GenTree* methHndTree = gtNewLclvNode(info.compTypeCtxtArg, TYP_I_IMPL);
                 methHndTree->gtFlags |= GTF_VAR_CONTEXT;
-                return gtNewHelperCallNode(CORINFO_HELP_INITINSTCLASS, TYP_VOID, gtNewIconNode(0), methHndTree);
+                return gtNewHelperCallNode(CORINFO_HELP_INITINSTCLASS, HelperInitClassRetType, gtNewIconNode(0),
+                                           methHndTree);
             }
 
             default: