diff --git a/Modules/CPackRPM.cmake b/Modules/CPackRPM.cmake
index 8f3f7ca69..15b62c752 100644
--- a/Modules/CPackRPM.cmake
+++ b/Modules/CPackRPM.cmake
@@ -1477,16 +1477,22 @@ function(cpack_rpm_debugsymbol_check INSTALL_FILES WORKING_DIR)
     endif()
   endforeach()
 
-  list(REMOVE_DUPLICATES mkdir_list_)
-  unset(TMP_RPM_DEBUGINFO_INSTALL)
-  foreach(part_ IN LISTS mkdir_list_)
-    string(APPEND TMP_RPM_DEBUGINFO_INSTALL "mkdir -p \"${part_}\"\n")
-  endforeach()
+  list(LENGTH mkdir_list_ len_)
+  if(len_)
+    list(REMOVE_DUPLICATES mkdir_list_)
+    unset(TMP_RPM_DEBUGINFO_INSTALL)
+    foreach(part_ IN LISTS mkdir_list_)
+      string(APPEND TMP_RPM_DEBUGINFO_INSTALL "mkdir -p \"${part_}\"\n")
+    endforeach()
+  endif()
 
-  list(REMOVE_DUPLICATES cp_list_)
-  foreach(part_ IN LISTS cp_list_)
-    string(APPEND TMP_RPM_DEBUGINFO_INSTALL "${part_}\n")
-  endforeach()
+  list(LENGTH cp_list_ len_)
+  if(len_)
+    list(REMOVE_DUPLICATES cp_list_)
+    foreach(part_ IN LISTS cp_list_)
+      string(APPEND TMP_RPM_DEBUGINFO_INSTALL "${part_}\n")
+    endforeach()
+  endif()
 
   if(NOT DEFINED CPACK_RPM_DEBUGINFO_EXCLUDE_DIRS)
     set(CPACK_RPM_DEBUGINFO_EXCLUDE_DIRS /usr /usr/src /usr/src/debug)
@@ -1501,29 +1507,34 @@ function(cpack_rpm_debugsymbol_check INSTALL_FILES WORKING_DIR)
     message("CPackRPM:Debug: CPACK_RPM_DEBUGINFO_EXCLUDE_DIRS= ${CPACK_RPM_DEBUGINFO_EXCLUDE_DIRS}")
   endif()
 
-  list(REMOVE_DUPLICATES additional_sources_)
-  unset(additional_sources_all_)
-  foreach(source_ IN LISTS additional_sources_)
-    string(REPLACE "/" ";" split_source_ " ${source_}")
-    list(REMOVE_AT split_source_ 0)
-    unset(tmp_path_)
-    # Now generate all segments of the path
-    foreach(segment_ IN LISTS split_source_)
-      string(APPEND tmp_path_ "/${segment_}")
-      list(APPEND additional_sources_all_ "${tmp_path_}")
+  list(LENGTH additional_sources_ len_)
+  if(len_)
+    list(REMOVE_DUPLICATES additional_sources_)
+    unset(additional_sources_all_)
+    foreach(source_ IN LISTS additional_sources_)
+      string(REPLACE "/" ";" split_source_ " ${source_}")
+      list(REMOVE_AT split_source_ 0)
+      unset(tmp_path_)
+      # Now generate all segments of the path
+      foreach(segment_ IN LISTS split_source_)
+        string(APPEND tmp_path_ "/${segment_}")
+        list(APPEND additional_sources_all_ "${tmp_path_}")
+      endforeach()
     endforeach()
-  endforeach()
 
-  list(REMOVE_DUPLICATES additional_sources_all_)
-  list(REMOVE_ITEM additional_sources_all_ ${CPACK_RPM_DEBUGINFO_EXCLUDE_DIRS})
+    list(REMOVE_DUPLICATES additional_sources_all_)
+    list(REMOVE_ITEM additional_sources_all_
+      ${CPACK_RPM_DEBUGINFO_EXCLUDE_DIRS})
 
-  unset(TMP_DEBUGINFO_ADDITIONAL_SOURCES)
-  foreach(source_ IN LISTS additional_sources_all_)
-    string(APPEND TMP_DEBUGINFO_ADDITIONAL_SOURCES "${source_}\n")
-  endforeach()
+    unset(TMP_DEBUGINFO_ADDITIONAL_SOURCES)
+    foreach(source_ IN LISTS additional_sources_all_)
+      string(APPEND TMP_DEBUGINFO_ADDITIONAL_SOURCES "${source_}\n")
+    endforeach()
+  endif()
 
   set(TMP_RPM_DEBUGINFO_INSTALL "${TMP_RPM_DEBUGINFO_INSTALL}" PARENT_SCOPE)
-  set(TMP_DEBUGINFO_ADDITIONAL_SOURCES "${TMP_DEBUGINFO_ADDITIONAL_SOURCES}" PARENT_SCOPE)
+  set(TMP_DEBUGINFO_ADDITIONAL_SOURCES "${TMP_DEBUGINFO_ADDITIONAL_SOURCES}"
+    PARENT_SCOPE)
 endfunction()
 
 function(cpack_rpm_variable_fallback OUTPUT_VAR_NAME)