diff --git a/otbGenerateOTBConfig.cmake b/otbGenerateOTBConfig.cmake
index 7620e18e3f9b39ffb9a99d2c4cde29468fab62d9..861b7a2e9a0e600046f4e4124e4bfb3917b2c92b 100644
--- a/otbGenerateOTBConfig.cmake
+++ b/otbGenerateOTBConfig.cmake
@@ -75,7 +75,7 @@ IF(OTB_USE_EXTERNAL_FLTK)
         SET(OTB_FLTK_LIBRARY_DIRS ${FLTK_LIBRARY_DIRS})
         SET(OTB_FLTK_EXECUTABLE_DIRS ${FLTK_EXECUTABLE_DIRS})
 ELSE(OTB_USE_EXTERNAL_FLTK)
-        GET_FILENAME_COMPONENT(FLUID_FILE_NAME ${FLUID_COMMAND} NAME )
+        GET_FILENAME_COMPONENT(FLUID_FILE_NAME "${FLUID_COMMAND}" NAME )
         SET(OTB_FLUID_COMMAND ${CMAKE_INSTALL_PREFIX}/bin/${FLUID_FILE_NAME})
         SET(OTB_FLTK_FLUID_EXECUTABLE ${OTB_FLUID_COMMAND})
         SET(OTB_FLTK_LIBRARY_DIRS ${CMAKE_INSTALL_PREFIX}/lib)