diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 41b6a7fede27b6f5d45bdc59a6dbead18873ac42..8c60590568ce1db168fc0d794e4c192388619304 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -16,7 +16,7 @@ SET_SOURCE_FILES_PROPERTIES(${XSD_SOURCES} PROPERTIES GENERATED 1)
 ADD_LIBRARY(trajectory SHARED ${sources} ${XSD_SOURCES})
 
 # link necessary libraries
-TARGET_LINK_LIBRARIES(trajectory ${XSD_LIBRARIES})
+TARGET_LINK_LIBRARIES(trajectory ${XSD_LIBRARY})
 TARGET_LINK_LIBRARIES(trajectory ${iriutils_LIBRARIES})
 
 ADD_DEPENDENCIES(trajectory xsd_files_gen)
diff --git a/src/xml/CMakeLists.txt b/src/xml/CMakeLists.txt
index 2f457feabb6379800c2a4723a74348c143b076fd..e571ce2aeebfcf21e84d8c2637563e9cf1ff5827 100644
--- a/src/xml/CMakeLists.txt
+++ b/src/xml/CMakeLists.txt
@@ -4,16 +4,15 @@ IF(EXISTS "/usr/include/xsd/cxx")
    SET(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -D_HAVE_XSD" PARENT_SCOPE)
    SET(XSD_FOUND TRUE) 
    MESSAGE(STATUS "Found the XML library ... adding support for XML files")
-   FIND_LIBRARY(XSD_LIBRARIES
+   FIND_LIBRARY(XSD_LIBRARY
       NAMES xerces-c
       PATHS /usr/lib /usr/local/lib /usr/lib/x86_64-linux-gnu/)
-   SET(XSD_LIBRARY    ${XSD_LIBRARIES})
 ELSE(EXISTS "/usr/include/xsd/cxx")
    MESSAGE(STATUS "XML library not found ... it will be impossible to handle XML files")
 ENDIF(EXISTS "/usr/include/xsd/cxx")
 
 IF(XSD_FOUND)
-   SET(XSD_LIBRARIES ${XSD_LIBRARIES} PARENT_SCOPE)
+   SET(XSD_LIBRARY ${XSD_LIBRARY} PARENT_SCOPE)
    SET(XSD_FILES motion_traj_file.xsd)
 
    IF(XSD_FILES)