diff --git a/man/CMakeLists.txt b/man/CMakeLists.txt
index 5fe72d0..3225653 100644
--- a/man/CMakeLists.txt
+++ b/man/CMakeLists.txt
@@ -6,12 +6,12 @@ mark_as_advanced(GZIP)
 include(GNUInstallDirs)
 
 if(HELP2MAN AND GZIP)	
-  set(H2M_FILE ${CMAKE_CURRENT_SOURCE_DIR}/${PROJECT_NAME}.supplemental.groff)
-  set(MAN_PAGE ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.1)
-  set(MAN_FILE ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.1.gz)
+  set(H2M_FILE "${CMAKE_CURRENT_SOURCE_DIR}/${PROJECT_NAME}.supplemental.groff")
+  set(MAN_PAGE "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.1")
+  set(MAN_FILE "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.1.gz")
   add_custom_command(
     OUTPUT ${MAN_FILE}
-    COMMAND ${HELP2MAN} -N -i ${H2M_FILE} -o ${MAN_PAGE} ${PROJECT_BINARY_DIR}/${PROJECT_NAME}${CMAKE_EXECUTABLE_SUFFIX}
+    COMMAND ${HELP2MAN} -N -i ${H2M_FILE} -o ${MAN_PAGE} "\"${PROJECT_BINARY_DIR}/${PROJECT_NAME}${CMAKE_EXECUTABLE_SUFFIX}\""
     COMMAND ${GZIP} -f -9 ${MAN_PAGE}
     MAIN_DEPENDENCY ${H2M_FILE}
 	COMMENT "Building man page"