diff --git a/source/RobotAPI/libraries/skills_gui/CMakeLists.txt b/source/RobotAPI/libraries/skills_gui/CMakeLists.txt
index c74364c131365269f4d9898df82d627e7f6251ff..a3b7599693a55f284cba0283d5d07bb5ae1343e2 100644
--- a/source/RobotAPI/libraries/skills_gui/CMakeLists.txt
+++ b/source/RobotAPI/libraries/skills_gui/CMakeLists.txt
@@ -7,8 +7,8 @@ armarx_set_target("Library: ${LIB_NAME}")
 set(LIBRARIES
     # ArmarXCore
     ArmarXCoreInterfaces ArmarXCore
-    # RobotAPI
-    # skills
+    RobotAPISkillsCore
+    #skills
     aron
 )
 
diff --git a/source/RobotAPI/libraries/skills_gui/memory/SkillMemoryInterface.h b/source/RobotAPI/libraries/skills_gui/memory/SkillMemoryInterface.h
index 4f2dc1ab0dec061668dd02ac2fb2d2d5f5e7ea50..e5378ac2dfae36059648053e7243ff46a390910e 100644
--- a/source/RobotAPI/libraries/skills_gui/memory/SkillMemoryInterface.h
+++ b/source/RobotAPI/libraries/skills_gui/memory/SkillMemoryInterface.h
@@ -1,6 +1,8 @@
 #ifndef SkillMemoryInterface_H
 #define SkillMemoryInterface_H
 
+#include <mutex>
+
 #include <QObject>
 
 #include "RobotAPI/libraries/skills/core/ProviderID.h"