diff --git a/tests/mkfifo.c b/tests/mkfifo.c
index ad4dec2a9c..318419a507 100644
--- a/tests/mkfifo.c
+++ b/tests/mkfifo.c
@@ -11,7 +11,9 @@ int main(void) {
   char temp[] = "/tmp/stattest-XXXXXX";
   const char file[] = "/mkfifo_fifo";
   int len = sizeof(temp) + sizeof(file);
+
   char* path = malloc(len * sizeof(char));
+  path[0] = '\0';
 
   if (path == NULL) {
     fprintf(stderr, "Could not allocate: %s\n", strerror(errno));
diff --git a/tests/mknod.c b/tests/mknod.c
index 58e279f688..50d533a2a2 100644
--- a/tests/mknod.c
+++ b/tests/mknod.c
@@ -11,7 +11,9 @@ int main(void) {
   char temp[] = "/tmp/stattest-XXXXXX";
   const char file[] = "/mknod";
   int len = sizeof(temp) + sizeof(file);
+
   char* path = malloc(len * sizeof(char));
+  path[0] = '\0';
 
   if (path == NULL) {
     fprintf(stderr, "Could not allocate: %s\n", strerror(errno));
diff --git a/tests/mknodat.c b/tests/mknodat.c
index b449a30d5b..ad2798624f 100644
--- a/tests/mknodat.c
+++ b/tests/mknodat.c
@@ -12,7 +12,9 @@ int main(void) {
   const char separator[] = "/";
   const char file[] = "mknod"; // relative
   int len = sizeof(temp) + sizeof(file) + sizeof(separator);
+
   char* path = malloc(len * sizeof(char));
+  path[0] = '\0';
 
   if (path == NULL) {
     fprintf(stderr, "Could not allocate: %s\n", strerror(errno));