diff --git a/config/CMakeChecks.txt b/config/CMakeChecks.txt
index 14a5be83..12234325 100644
--- a/config/CMakeChecks.txt
+++ b/config/CMakeChecks.txt
@@ -90,11 +90,6 @@ check_function_exists( strtol HAVE_STRTOL )
 check_function_exists( timegm HAVE_TIMEGM )
 check_function_exists( vprintf HAVE_VPRINTF )
 
-
-IF( HAVE_STDBOOL_H )
-    CHECK_SYMBOL_EXISTS( "_Bool" stdbool.h HAVE__BOOL )
-ENDIF( HAVE_STDBOOL_H )
-
 # struct tm in sys/time.h
 IF( HAVE_SYS_TIME_H )
     CHECK_C_SOURCE_COMPILES( "#include <sys/time.h>
@@ -135,7 +130,6 @@ SET( EXV_SYMBOLS HAVE_STDBOOL_H
                  HAVE_VPRINTF
                  HAVE_WCHAR_H
                  HAVE_XMP_TOOLKIT
-                 HAVE__BOOL
                  HAVE_REGEX
                  UNICODE_PATH
                  STRERROR_R_CHAR_P
diff --git a/config/config.h.cmake b/config/config.h.cmake
index 5ec944b7..07c5e068 100644
--- a/config/config.h.cmake
+++ b/config/config.h.cmake
@@ -137,9 +137,6 @@
 /* Define to 1 if you have the Adobe XMP Toolkit. */
 #cmakedefine EXV_HAVE_XMP_TOOLKIT 1
 
-/* Define to 1 if the system has the type `_Bool'. */
-#cmakedefine EXV_HAVE__BOOL 1
-
 /* Define to 1 if `lstat' dereferences a symlink specified with a trailing
    slash. */
 #cmakedefine EXV_LSTAT_FOLLOWS_SLASHED_SYMLINK 1
diff --git a/config/config.h.in b/config/config.h.in
index fd4ea131..00d3c7f7 100644
--- a/config/config.h.in
+++ b/config/config.h.in
@@ -122,9 +122,6 @@
 /* Define to 1 if you have the Adobe XMP Toolkit. */
 #undef HAVE_XMP_TOOLKIT
 
-/* Define to 1 if the system has the type `_Bool'. */
-#undef HAVE__BOOL
-
 /* Define to 1 if `lstat' dereferences a symlink specified with a trailing
    slash. */
 #undef LSTAT_FOLLOWS_SLASHED_SYMLINK
diff --git a/include/exiv2/exv_msvc.h b/include/exiv2/exv_msvc.h
index c4d9217f..155fa0dc 100644
--- a/include/exiv2/exv_msvc.h
+++ b/include/exiv2/exv_msvc.h
@@ -140,9 +140,6 @@
 /* Define to 1 if you have the Adobe XMP Toolkit. */
 #define EXV_HAVE_XMP_TOOLKIT 1
 
-/* Define to 1 if the system has the type `_Bool'. */
-/* #undef EXV_HAVE__BOOL */
-
 /* Define to 1 if `lstat' dereferences a symlink specified with a trailing
    slash. */
 /* #undef EXV_LSTAT_FOLLOWS_SLASHED_SYMLINK */