diff --git a/Doxyfile.in b/Doxyfile.in
index 8b8c5f78b..fd220ed44 100644
--- a/Doxyfile.in
+++ b/Doxyfile.in
@@ -2098,7 +2098,7 @@ TAGFILES               =
 # tag file that is based on the input files it reads. See section "Linking to
 # external documentation" for more information about the usage of tag files.
 
-GENERATE_TAGFILE       = @CMAKE_BUILD_DIR@/docs/engine.tag
+GENERATE_TAGFILE       = @CMAKE_BINARY_DIR@/docs/engine.tag
 
 # If the ALLEXTERNALS tag is set to YES, all external class will be listed in
 # the class index. If set to NO, only the inherited external classes will be