diff --git a/src/native/corehost/configure.h.in b/src/native/corehost/configure.h.in
index 4ddf2e6cfa7b08..a8774b2aee0d11 100644
--- a/src/native/corehost/configure.h.in
+++ b/src/native/corehost/configure.h.in
@@ -1,7 +1,7 @@
 #ifndef PAL_HOST_CONFIGURE_H_INCLUDED
 #define PAL_HOST_CONFIGURE_H_INCLUDED
 
-#cmakedefine01 CLR_SINGLE_FILE_HOST_ONLY
+#cmakedefine CLR_SINGLE_FILE_HOST_ONLY
 
 #ifdef CLR_SINGLE_FILE_HOST_ONLY
 // When hosting components are all statically linked,
@@ -20,4 +20,4 @@
 #define CURRENT_OS_NAME "@CLR_CMAKE_TARGET_OS@"
 #define CURRENT_ARCH_NAME "@CLR_CMAKE_TARGET_ARCH@"
 
-#endif // PAL_HOST_CONFIGURE_H_INCLUDED
\ No newline at end of file
+#endif // PAL_HOST_CONFIGURE_H_INCLUDED