diff --git a/src/core/sys/posix/dlfcn.d b/src/core/sys/posix/dlfcn.d
index 25a848d21b..6223d63f3a 100644
--- a/src/core/sys/posix/dlfcn.d
+++ b/src/core/sys/posix/dlfcn.d
@@ -291,3 +291,18 @@ else version( CRuntime_Bionic )
         void*        dli_saddr;
     }
 }
+else version( CRuntime_Musl )
+{
+    enum {
+        RTLD_LAZY     = 1,
+        RTLD_NOW      = 2,
+        RTLD_NOLOAD   = 4,
+        RTLD_NODELETE = 4096,
+        RTLD_GLOBAL   = 256,
+        RTLD_LOCAL    = 0,
+    }
+    int          dlclose(void*);
+    const(char)* dlerror();
+    void*        dlopen(in char*, int);
+    void*        dlsym(void*, in char*);
+}