diff --git a/libc/decl/errno_values.h b/libc/decl/errno_values.h
index 9052daf6..d52c6005 100644
--- a/libc/decl/errno_values.h
+++ b/libc/decl/errno_values.h
@@ -57,6 +57,7 @@
 #define ESHUTDOWN 65
 #define ECONNABORTED 66
 #define ECONNRESET 67
+#define EADDRNOTAVAIL 68
 
 #define EOPNOTSUPP ENOTSUP
 
diff --git a/libc/strerror.cpp b/libc/strerror.cpp
index bd660d57..bfdc0c30 100644
--- a/libc/strerror.cpp
+++ b/libc/strerror.cpp
@@ -86,6 +86,7 @@ extern "C" const char* sortix_strerror(int errnum)
 	case ESHUTDOWN: return "Cannot send after transport endpoint shutdown";
 	case ECONNABORTED: return "Connection aborted";
 	case ECONNRESET: return "Connection reset";
+	case EADDRNOTAVAIL: return "Address not available";
 	default: return "Unknown error condition";
 	}
 }