diff --git a/src/libraries/Native/Unix/System.Globalization.Native/pal_icushim_internal.h b/src/libraries/Native/Unix/System.Globalization.Native/pal_icushim_internal.h
index 71c640b30d1bb6..081518b753deb5 100644
--- a/src/libraries/Native/Unix/System.Globalization.Native/pal_icushim_internal.h
+++ b/src/libraries/Native/Unix/System.Globalization.Native/pal_icushim_internal.h
@@ -19,7 +19,6 @@
 
 // All ICU headers need to be included here so that all function prototypes are
 // available before the function pointers are declared below.
-#include <unicode/uclean.h>
 #include <unicode/ucurr.h>
 #include <unicode/ucal.h>
 #include <unicode/uchar.h>