diff --git a/CMakeLists.txt b/CMakeLists.txt
index 40828cd9..1f8d55ad 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1861,6 +1861,8 @@ if(HAVE_DECODERS)
             src/common/sysdefs.h
             src/common/tuklib_common.h
             src/common/tuklib_config.h
+            src/common/tuklib_mbstr_nonprint.c
+            src/common/tuklib_mbstr_nonprint.h
             src/common/tuklib_exit.c
             src/common/tuklib_exit.h
             src/common/tuklib_gettext.h
@@ -1891,6 +1893,7 @@ if(HAVE_DECODERS)
         endif()
 
         tuklib_progname("${XZDEC}")
+        tuklib_mbstr("${XZDEC}")
 
         install(TARGETS "${XZDEC}"
                 RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
diff --git a/src/xzdec/Makefile.am b/src/xzdec/Makefile.am
index 31a6508c..f300cc45 100644
--- a/src/xzdec/Makefile.am
+++ b/src/xzdec/Makefile.am
@@ -11,6 +11,7 @@
 xzdec_SOURCES = \
 	xzdec.c \
 	../common/tuklib_progname.c \
+	../common/tuklib_mbstr_nonprint.c \
 	../common/tuklib_exit.c
 
 if COND_W32
@@ -34,6 +35,7 @@ xzdec_LDADD += $(LTLIBINTL)
 lzmadec_SOURCES = \
 	xzdec.c \
 	../common/tuklib_progname.c \
+	../common/tuklib_mbstr_nonprint.c \
 	../common/tuklib_exit.c
 
 if COND_W32
diff --git a/src/xzdec/xzdec.c b/src/xzdec/xzdec.c
index 84d31929..02028f33 100644
--- a/src/xzdec/xzdec.c
+++ b/src/xzdec/xzdec.c
@@ -43,6 +43,7 @@
 #include "getopt.h"
 #include "tuklib_gettext.h"
 #include "tuklib_progname.h"
+#include "tuklib_mbstr_nonprint.h"
 #include "tuklib_exit.h"
 
 #ifdef TUKLIB_DOSLIKE
@@ -210,7 +211,8 @@ uncompress(lzma_stream *strm, FILE *file, const char *filename)
 				// an error occurred. ferror() doesn't
 				// touch errno.
 				my_errorf("%s: Error reading input file: %s",
-						filename, strerror(errno));
+					tuklib_mask_nonprint(filename),
+					strerror(errno));
 				exit(EXIT_FAILURE);
 			}
 
@@ -293,7 +295,8 @@ uncompress(lzma_stream *strm, FILE *file, const char *filename)
 				break;
 			}
 
-			my_errorf("%s: %s", filename, msg);
+			my_errorf("%s: %s", tuklib_mask_nonprint(filename),
+					msg);
 			exit(EXIT_FAILURE);
 		}
 	}
@@ -423,6 +426,8 @@ main(int argc, char **argv)
 	// We need to set the locale even though we don't have any
 	// translated messages:
 	//
+	//   - tuklib_mask_nonprint() has locale-specific behavior (LC_CTYPE).
+	//
 	//   - This is needed on Windows to make non-ASCII filenames display
 	//     properly when the active code page has been set to UTF-8
 	//     in the application manifest. Use the helper macro from
@@ -465,8 +470,10 @@ main(int argc, char **argv)
 				src_name = argv[optind];
 				src_file = fopen(src_name, "rb");
 				if (src_file == NULL) {
-					my_errorf("%s: %s", src_name,
-							strerror(errno));
+					my_errorf("%s: %s",
+						tuklib_mask_nonprint(
+							src_name),
+						strerror(errno));
 					exit(EXIT_FAILURE);
 				}
 			}