diff --git a/tests/plugins/plugin_phobos_usage.d b/tests/plugins/plugin_phobos_usage.d
new file mode 100644
index 0000000000..c426a9fe2e
--- /dev/null
+++ b/tests/plugins/plugin_phobos_usage.d
@@ -0,0 +1,30 @@
+// Test usage of Phobos (used to result in dlopen missing symbols, because LDC itself did not have that Phobos symbol)
+
+// REQUIRES: Plugins
+
+// RUN: split-file %s %t --leading-lines
+// RUN: %buildplugin %t/plugin.d -of=%t/plugin%so --buildDir=%t/build
+// RUN: %ldc -wi -c -o- --plugin=%t/plugin%so %t/testcase.d 2>&1 | FileCheck %t/testcase.d
+
+//--- plugin.d
+import dmd.dmodule : Module;
+import dmd.errors;
+import dmd.location;
+
+import std.experimental.allocator.mallocator;
+
+extern(C) void runSemanticAnalysis(Module m) {
+    auto buffer = Mallocator.instance.allocate(1024 * 1024 * 4);
+    scope(exit) Mallocator.instance.deallocate(buffer);
+
+    if (m.md) {
+        warning(m.md.loc, "It works!");
+    }
+}
+
+//--- testcase.d
+// CHECK: testcase.d([[@LINE+1]]): Warning: It works!
+module testcase;
+int testfunction(int i) {
+    return i * 2;
+}
diff --git a/tools/ldc-build-plugin.d.in b/tools/ldc-build-plugin.d.in
index 84fd25ff35..d580f80c92 100644
--- a/tools/ldc-build-plugin.d.in
+++ b/tools/ldc-build-plugin.d.in
@@ -16,6 +16,9 @@ else version (TVOS)
 else version (WatchOS)
     version = Darwin;
 
+version (linux) version = LDCLinkedWithSharedRuntime;
+version (FreeBSD) version = LDCLinkedWithSharedRuntime;
+
 struct Config {
     string ldcExecutable;
     string buildDir;
@@ -140,7 +143,6 @@ void build() {
         "--d-version=IN_LLVM",
         "-J" ~ buildPath(config.ldcSourceDir, "dmd", "res"),
         "--shared",
-        "--defaultlib=",
         "--od=" ~ config.buildDir
     ];
 
@@ -148,6 +150,12 @@ void build() {
         args ~= "-L-Wl,-undefined,dynamic_lookup";
     }
 
+    // When LDC is linked with shared runtime, don't link it again into the plugin to avoid two runtimes being loaded.
+    // Only link with phobos.
+    version (LDCLinkedWithSharedRuntime) {
+        args ~= "--defaultlib=phobos2-ldc";
+    }
+
     args ~= config.ldcArgs;
 
     exec(args);