diff --git a/clang-tools-extra/docs/doxygen.cfg.in b/clang-tools-extra/docs/doxygen.cfg.in
--- a/clang-tools-extra/docs/doxygen.cfg.in
+++ b/clang-tools-extra/docs/doxygen.cfg.in
@@ -1230,7 +1230,7 @@
 HHC_LOCATION           =
 
 # The GENERATE_CHI flag controls if a separate .chi index file is generated (
-# YES) or that it should be included in the master .chm file ( NO).
+# YES) or that it should be included in the main .chm file ( NO).
 # The default value is: NO.
 # This tag requires that the tag GENERATE_HTMLHELP is set to YES.
 
diff --git a/clang/docs/doxygen.cfg.in b/clang/docs/doxygen.cfg.in
--- a/clang/docs/doxygen.cfg.in
+++ b/clang/docs/doxygen.cfg.in
@@ -1219,7 +1219,7 @@
 HHC_LOCATION           =
 
 # The GENERATE_CHI flag controls if a separate .chi index file is generated (
-# YES) or that it should be included in the master .chm file ( NO).
+# YES) or that it should be included in the main .chm file ( NO).
 # The default value is: NO.
 # This tag requires that the tag GENERATE_HTMLHELP is set to YES.
 
diff --git a/flang/docs/doxygen.cfg.in b/flang/docs/doxygen.cfg.in
--- a/flang/docs/doxygen.cfg.in
+++ b/flang/docs/doxygen.cfg.in
@@ -1222,7 +1222,7 @@
 HHC_LOCATION           =
 
 # The GENERATE_CHI flag controls if a separate .chi index file is generated (
-# YES) or that it should be included in the master .chm file ( NO).
+# YES) or that it should be included in the main .chm file ( NO).
 # The default value is: NO.
 # This tag requires that the tag GENERATE_HTMLHELP is set to YES.
 
diff --git a/lldb/docs/doxygen.cfg.in b/lldb/docs/doxygen.cfg.in
--- a/lldb/docs/doxygen.cfg.in
+++ b/lldb/docs/doxygen.cfg.in
@@ -916,7 +916,7 @@
 
 # If the GENERATE_HTMLHELP tag is set to YES, the GENERATE_CHI flag
 # controls if a separate .chi index file is generated (YES) or that
-# it should be included in the master .chm file (NO).
+# it should be included in the main .chm file (NO).
 
 GENERATE_CHI           = NO
 
diff --git a/llvm/docs/doxygen.cfg.in b/llvm/docs/doxygen.cfg.in
--- a/llvm/docs/doxygen.cfg.in
+++ b/llvm/docs/doxygen.cfg.in
@@ -1220,7 +1220,7 @@
 HHC_LOCATION           =
 
 # The GENERATE_CHI flag controls if a separate .chi index file is generated (
-# YES) or that it should be included in the master .chm file ( NO).
+# YES) or that it should be included in the main .chm file ( NO).
 # The default value is: NO.
 # This tag requires that the tag GENERATE_HTMLHELP is set to YES.
 
diff --git a/mlir/docs/doxygen.cfg.in b/mlir/docs/doxygen.cfg.in
--- a/mlir/docs/doxygen.cfg.in
+++ b/mlir/docs/doxygen.cfg.in
@@ -1220,7 +1220,7 @@
 HHC_LOCATION           =
 
 # The GENERATE_CHI flag controls if a separate .chi index file is generated (
-# YES) or that it should be included in the master .chm file ( NO).
+# YES) or that it should be included in the main .chm file ( NO).
 # The default value is: NO.
 # This tag requires that the tag GENERATE_HTMLHELP is set to YES.
 
diff --git a/openmp/docs/doxygen.cfg.in b/openmp/docs/doxygen.cfg.in
--- a/openmp/docs/doxygen.cfg.in
+++ b/openmp/docs/doxygen.cfg.in
@@ -1220,7 +1220,7 @@
 HHC_LOCATION           =
 
 # The GENERATE_CHI flag controls if a separate .chi index file is generated (
-# YES) or that it should be included in the master .chm file ( NO).
+# YES) or that it should be included in the main .chm file ( NO).
 # The default value is: NO.
 # This tag requires that the tag GENERATE_HTMLHELP is set to YES.
 
diff --git a/openmp/runtime/doc/doxygen/config b/openmp/runtime/doc/doxygen/config
--- a/openmp/runtime/doc/doxygen/config
+++ b/openmp/runtime/doc/doxygen/config
@@ -1048,7 +1048,7 @@
 
 # If the GENERATE_HTMLHELP tag is set to YES, the GENERATE_CHI flag
 # controls if a separate .chi index file is generated (YES) or that
-# it should be included in the master .chm file (NO).
+# it should be included in the main .chm file (NO).
 
 GENERATE_CHI           = NO
 
diff --git a/polly/docs/doxygen.cfg.in b/polly/docs/doxygen.cfg.in
--- a/polly/docs/doxygen.cfg.in
+++ b/polly/docs/doxygen.cfg.in
@@ -1220,7 +1220,7 @@
 HHC_LOCATION           =
 
 # The GENERATE_CHI flag controls if a separate .chi index file is generated (
-# YES) or that it should be included in the master .chm file ( NO).
+# YES) or that it should be included in the main .chm file ( NO).
 # The default value is: NO.
 # This tag requires that the tag GENERATE_HTMLHELP is set to YES.