diff --git a/dlls/wnaspi32/aspi.c b/dlls/wnaspi32/aspi.c
index c4bc1bbd396..07f6bf63937 100644
--- a/dlls/wnaspi32/aspi.c
+++ b/dlls/wnaspi32/aspi.c
@@ -237,6 +237,10 @@ int SCSI_OpenDevice( int h, int c, int t, int d )
 
     TRACE("Opening device %s mode O_RDWR\n",devstr);
     fd = open(devstr, O_RDWR);
+    if (fd == -1) {
+        char *errstring = strerror(errno);
+        ERR("Failed to open device %s: %s\n", devstr, errstring);
+    }
 
     return fd;
 }