diff --git a/base/application.cpp b/base/application.cpp
index f42f573cd..e4ab5234b 100644
--- a/base/application.cpp
+++ b/base/application.cpp
@@ -18,6 +18,9 @@
  ******************************************************************************/
 
 #include "i2-base.h"
+#ifndef _WIN32
+#	include <ltdl.h>
+#endif /* _WIN32 */
 
 using namespace icinga;
 
diff --git a/base/component.cpp b/base/component.cpp
index a22a094c6..c28847d84 100644
--- a/base/component.cpp
+++ b/base/component.cpp
@@ -18,6 +18,9 @@
  ******************************************************************************/
 
 #include "i2-base.h"
+#ifndef _WIN32
+#	include <ltdl.h>
+#endif /* _WIN32 */
 
 using namespace icinga;
 
diff --git a/base/unix.h b/base/unix.h
index e463afe15..0e790f2b2 100644
--- a/base/unix.h
+++ b/base/unix.h
@@ -35,7 +35,6 @@
 #include <libgen.h>
 #include <syslog.h>
 #include <sys/file.h>
-#include <ltdl.h>
 
 void Sleep(unsigned long milliseconds);