diff --git a/cmake/getversion.cmake b/cmake/getversion.cmake
index cb27ebd87..bc00a7d42 100644
--- a/cmake/getversion.cmake
+++ b/cmake/getversion.cmake
@@ -213,7 +213,8 @@ set(PROJECT_VERSION_FRIENDLY "${PROJECT_VERSION} (${GIT_COMMIT_DATE_FRIENDLY})")
 # Format: <program name>[-ReleaseName]-MAJ.MIN.PATCH[-prerelease_label]
 set(PROJECT_VERSION_FILENAME "${PROJECT_NAME}")
 if(PROJECT_VERSION_RELEASENAME)
-  set(PROJECT_VERSION_FILENAME "${PROJECT_VERSION_FILENAME}-${PROJECT_VERSION_RELEASENAME}")
+  string(REPLACE " " "_" PROJECT_VERSION_RELEASENAME_SAFE "${PROJECT_VERSION_RELEASENAME}")
+  set(PROJECT_VERSION_FILENAME "${PROJECT_VERSION_FILENAME}-${PROJECT_VERSION_RELEASENAME_SAFE}")
 endif()
 set(PROJECT_VERSION_FILENAME "${PROJECT_VERSION_FILENAME}-${PROJECT_VERSION}")