diff --git a/cmake/macros.cmake b/cmake/macros.cmake
index 8d8eda5fd..466848f0a 100644
--- a/cmake/macros.cmake
+++ b/cmake/macros.cmake
@@ -312,11 +312,7 @@ MACRO(ROBOT)
 		MESSAGE(FATAL_ERROR "Cannot build a robot without sources")
 	ENDIF()
 
-	IF(RB_HAS_INTERFACE AND RB_INTERFACE)
-		ROBOT_MODULE(NAME ${RB_NAME} INTERFACE ${RB_INTERFACE} SOURCES ${RB_SOURCES})
-	ELSE()
-		ROBOT_MODULE(NAME ${RB_NAME} SOURCES ${RB_SOURCES})
-	ENDIF()
+	ROBOT_MODULE(NAME ${RB_NAME} INTERFACE ${RB_INTERFACE} SOURCES ${RB_SOURCES})
 
 	ROBOT_DATA(NAME ${RB_NAME} PREFIX ${RB_PREFIX} FILES ${RB_FILES} SUBDIRS ${RB_SUBDIRS})
 ENDMACRO(ROBOT)