diff --git a/qad/QtWraps.cmake b/qad/QtWraps.cmake
index ad53635..b9ea765 100644
--- a/qad/QtWraps.cmake
+++ b/qad/QtWraps.cmake
@@ -385,9 +385,9 @@ endmacro()
 
 macro(_qt_multitarget_suffix_ _OUT _IN _v)
 	if (NOT "x${MULTILIB_${_IN}_SUFFIX_Qt${_v}}" STREQUAL "x")
-		set(${_OUT} ${_IN}${MULTILIB_${_IN}_SUFFIX_Qt${_v}})
+		set(${_OUT} "${MULTILIB_${_IN}_SUFFIX_Qt${_v}}")
 	else()
-		set(${_OUT} ${_IN}${MULTILIB_SUFFIX_Qt${_v}})
+		set(${_OUT} "${MULTILIB_SUFFIX_Qt${_v}}")
 	endif()
 endmacro()