diff --git a/libmaxsi/decl/errno_values.h b/libmaxsi/decl/errno_values.h
index dcf11822..a4162881 100644
--- a/libmaxsi/decl/errno_values.h
+++ b/libmaxsi/decl/errno_values.h
@@ -26,6 +26,7 @@
 #define ENOTSUP 34
 #define EBLOCKING 35
 #define EINTR 36
+#define ENOTEMPTY 37
 #define ELAKE 41
 
 #endif
diff --git a/libmaxsi/error.cpp b/libmaxsi/error.cpp
index 20bde686..600c94e1 100644
--- a/libmaxsi/error.cpp
+++ b/libmaxsi/error.cpp
@@ -74,6 +74,7 @@ namespace Maxsi
 				case ENOTSUP: return (char*) "Operation not supported";
 				case EBLOCKING: return (char*) "Operation is blocking";
 				case EINTR: return (char*) "Interrupted function call";
+				case ENOTEMPTY: return (char*) "Directory not empty";
 				case ELAKE: return (char*) "Sit by a lake";
 				default: return (char*) "Unknown error condition";
 			}