diff --git a/src/core/lib/support/env.h b/src/core/lib/support/env.h
index 392fcb6e4c0..e1c3bdc66a3 100644
--- a/src/core/lib/support/env.h
+++ b/src/core/lib/support/env.h
@@ -36,6 +36,10 @@ char *gpr_getenv(const char *name);
 /* Sets the the environment with the specified name to the specified value. */
 void gpr_setenv(const char *name, const char *value);
 
+/* This is a version of gpr_getenv that does not produce any output if it has to
+   use an insecure version of the function. It is ONLY to be used to solve the
+   problem in which we need to check an env variable to configure the verbosity
+   level of logging. So DO NOT USE THIS. */
 char *gpr_getenv_silent(const char *name, char** dst);
 
 #ifdef __cplusplus