diff --git a/src/asm/output.c b/src/asm/output.c
index a5168338..0d04d7e8 100644
--- a/src/asm/output.c
+++ b/src/asm/output.c
@@ -471,7 +471,12 @@ static void registerExportedSymbol(struct Symbol *symbol, void *arg)
  */
 void out_WriteObject(void)
 {
-	FILE *f = fopen(tzObjectname, "wb");
+	FILE *f;
+	if (strcmp(tzObjectname, "-") != 0) {
+		f = fopen(tzObjectname, "wb");
+	} else {
+		f = fdopen(1, "wb");
+	}
 
 	if (!f)
 		err(1, "Couldn't write file '%s'", tzObjectname);
diff --git a/src/link/main.c b/src/link/main.c
index 00bc1ae3..64256aed 100644
--- a/src/link/main.c
+++ b/src/link/main.c
@@ -13,6 +13,7 @@
 #include <stdio.h>
 #include <stdint.h>
 #include <stdlib.h>
+#include <string.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 
@@ -126,7 +127,14 @@ FILE *openFile(char const *fileName, char const *mode)
 	if (!fileName)
 		return NULL;
 
-	FILE *file = fopen(fileName, mode);
+	FILE *file;
+	if (strcmp(fileName, "-") != 0) {
+		file = fopen(fileName, mode);
+	} else if (strchr(mode, 'r')) {
+		file = fdopen(0, mode);
+	} else {
+		file = fdopen(1, mode);
+	}
 
 	if (!file)
 		err(1, "Could not open file \"%s\"", fileName);