diff --git a/src/library/tools/R/sotools.R b/src/library/tools/R/sotools.R
index b73cdf7cd65..e3dfca7156a 100644
--- a/src/library/tools/R/sotools.R
+++ b/src/library/tools/R/sotools.R
@@ -635,7 +635,7 @@ nonAPI <- c("chol_", "chol2inv_", "cg_", "ch_", "rg_",
             "R_DefCallbacks", "R_DefParams", "R_DefParamsEx",
             "R_DirtyImage", "R_GUIType", "R_GlobalContext",
             "R_HistoryFile", "R_HistorySize", "R_Home", "R_HomeDir",
-            "R_InputHandlers", "R_Interactive", "R_Outputfile",
+            "R_Interactive", "R_Outputfile",
             "R_PolledEvents", "R_ReplDLLdo1", "R_ReplDLLinit",
             "R_RestoreGlobalEnv", "R_RestoreGlobalEnvFromFile",
             "R_RestoreHistory", "R_RunExitFinalizers", "R_SaveGlobalEnv",