diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index d3c07d0a76f12e..717ddb8339584c 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -9734,7 +9734,7 @@ Sema::ActOnFunctionDeclarator(Scope *S, Declarator &D, DeclContext *DC,
     bool ImplicitInlineCXX20 = !getLangOpts().CPlusPlusModules ||
                                NewFD->isConstexpr() || NewFD->isConsteval() ||
                                !NewFD->getOwningModule() ||
-                               NewFD->isFromExplicitGlobalModule() ||
+                               NewFD->isFromGlobalModule() ||
                                NewFD->getOwningModule()->isHeaderLikeModule();
     bool isInline = D.getDeclSpec().isInlineSpecified();
     bool isVirtual = D.getDeclSpec().isVirtualSpecified();
diff --git a/clang/test/Modules/pr108732.cppm b/clang/test/Modules/pr108732.cppm
new file mode 100644
index 00000000000000..f3b495aa826ce3
--- /dev/null
+++ b/clang/test/Modules/pr108732.cppm
@@ -0,0 +1,14 @@
+// RUN: %clang_cc1 -std=c++20 %s -ast-dump | FileCheck %s
+export module mod;
+
+extern "C++" {
+class C
+{
+public:
+bool foo() const {
+    return true;
+}
+};
+}
+
+// CHECK: foo {{.*}}implicit-inline