diff --git a/src/stdio/fgetws.c b/src/stdio/fgetws.c
index 195cb4355a14b10b05b0b50cf293456b5b7b4f75..b08b30491af14982248461caafd62d3a3aa64909 100644
--- a/src/stdio/fgetws.c
+++ b/src/stdio/fgetws.c
@@ -1,5 +1,6 @@
 #include "stdio_impl.h"
 #include <wchar.h>
+#include <errno.h>
 
 wint_t __fgetwc_unlocked(FILE *);
 
@@ -11,6 +12,10 @@ wchar_t *fgetws(wchar_t *restrict s, int n, FILE *restrict f)
 
 	FLOCK(f);
 
+	/* Setup a dummy errno so we can detect EILSEQ. This is
+	 * the only way to catch encoding errors in the form of a
+	 * partial character just before EOF. */
+	errno = EAGAIN;
 	for (; n; n--) {
 		wint_t c = __fgetwc_unlocked(f);
 		if (c == WEOF) break;
@@ -18,7 +23,7 @@ wchar_t *fgetws(wchar_t *restrict s, int n, FILE *restrict f)
 		if (c == '\n') break;
 	}
 	*p = 0;
-	if (ferror(f)) p = s;
+	if (ferror(f) || errno==EILSEQ) p = s;
 
 	FUNLOCK(f);