diff --git a/code/nel/src/gui/group_paragraph.cpp b/code/nel/src/gui/group_paragraph.cpp
index 00ea5f3b7..9e065c878 100644
--- a/code/nel/src/gui/group_paragraph.cpp
+++ b/code/nel/src/gui/group_paragraph.cpp
@@ -209,6 +209,8 @@ namespace NLGUI
 			}
 
 			nlassert(false);
+
+			return "";
 		}
 		else
 		if( name == "align" )
@@ -229,6 +231,8 @@ namespace NLGUI
 			}
 
 			nlassert(false);
+
+			return "";
 		}
 		else
 		if( name == "space" )
diff --git a/code/nel/src/gui/group_table.cpp b/code/nel/src/gui/group_table.cpp
index 9f019ed48..2fdd7e364 100644
--- a/code/nel/src/gui/group_table.cpp
+++ b/code/nel/src/gui/group_table.cpp
@@ -89,6 +89,8 @@ namespace NLGUI
 			}
 
 			nlassert(false);
+
+			return "";
 		}
 		else
 		if( name == "valign" )
@@ -106,6 +108,8 @@ namespace NLGUI
 			}
 
 			nlassert(false);
+
+			return "";
 		}
 		else
 		if( name == "left_margin" )