diff --git a/src/cmd/ksh93/sh/io.c b/src/cmd/ksh93/sh/io.c
index 6636e027f..a433fff51 100644
--- a/src/cmd/ksh93/sh/io.c
+++ b/src/cmd/ksh93/sh/io.c
@@ -64,9 +64,9 @@
 
 #ifndef ERROR_PIPE
 #ifdef ECONNRESET
-#define ERROR_PIPE(e)	((e)==EPIPE||(e)==ECONNRESET)
+#define ERROR_PIPE(e)	((e)==EPIPE||(e)==ECONNRESET||(e)==EIO)
 #else
-#define ERROR_PIPE(e)	((e)==EPIPE)
+#define ERROR_PIPE(e)	((e)==EPIPE||(e)==EIO)
 #endif
 #endif
 
diff --git a/src/lib/libast/include/error.h b/src/lib/libast/include/error.h
index 99c8899bf..6baaf0d32 100644
--- a/src/lib/libast/include/error.h
+++ b/src/lib/libast/include/error.h
@@ -85,9 +85,9 @@
 #define ERROR_SET		0x0080	/* set context			*/
 
 #ifdef ECONNRESET
-#define ERROR_PIPE(e)		((e)==EPIPE||(e)==ECONNRESET)
+#define ERROR_PIPE(e)		((e)==EPIPE||(e)==ECONNRESET||(e)==EIO)
 #else
-#define ERROR_PIPE(e)		((e)==EPIPE)
+#define ERROR_PIPE(e)		((e)==EPIPE||(e)==EIO)
 #endif
 
 /*