diff --git a/src/plugins/webassembly/webassemblytoolchain.cpp b/src/plugins/webassembly/webassemblytoolchain.cpp
index 3174e0e9548..925b7f5dbfb 100644
--- a/src/plugins/webassembly/webassemblytoolchain.cpp
+++ b/src/plugins/webassembly/webassemblytoolchain.cpp
@@ -42,6 +42,12 @@ static const Abi &toolChainAbi()
 
 static void addRegisteredMinGWToEnvironment(Environment &env)
 {
+    if (!ToolChainManager::isLoaded()) {
+        // Avoid querying the ToolChainManager before it is loaded, which is the case during
+        // toolchain restoration. The compiler version can be determined without MinGW in path.
+        return;
+    }
+
     const ToolChain *toolChain = ToolChainManager::toolChain([](const ToolChain *t){
         return t->typeId() == ProjectExplorer::Constants::MINGW_TOOLCHAIN_TYPEID;
     });
@@ -54,7 +60,7 @@ void WebAssemblyToolChain::addToEnvironment(Environment &env) const
     const FilePath emSdk = settings().emSdk();
     WebAssemblyEmSdk::addToEnvironment(emSdk, env);
     if (env.osType() == OsTypeWindows)
-        addRegisteredMinGWToEnvironment(env);
+        addRegisteredMinGWToEnvironment(env); // qmake based builds require [mingw32-]make.exe
 }
 
 WebAssemblyToolChain::WebAssemblyToolChain() :