diff --git a/src/coreclr/pal/src/config.h.in b/src/coreclr/pal/src/config.h.in
index 941e60e71ee62e..da2608803c8294 100644
--- a/src/coreclr/pal/src/config.h.in
+++ b/src/coreclr/pal/src/config.h.in
@@ -87,6 +87,7 @@
 #cmakedefine01 HAVE_WORKING_GETTIMEOFDAY
 #cmakedefine01 HAVE_WORKING_CLOCK_GETTIME
 #cmakedefine01 HAVE_CLOCK_THREAD_CPUTIME
+#cmakedefine01 HAVE_CLOCK_MONOTONIC
 #cmakedefine01 HAVE_PTHREAD_CONDATTR_SETCLOCK
 #cmakedefine01 MMAP_ANON_IGNORES_PROTECTION
 #cmakedefine01 ONE_SHARED_MAPPING_PER_FILEREGION_PER_PROCESS