Index: code/tools/asm/q3asm.c
===================================================================
--- code/tools/asm/q3asm.c	(revision 1387)
+++ code/tools/asm/q3asm.c	(working copy)
@@ -1615,6 +1616,10 @@
 		asmFileNames[ numAsmFiles ] = copystring( argv[ i ] );
 		numAsmFiles++;
 	}
+	// In some case it Segfault without this check
+	if ( numAsmFiles == 0 ) {
+		Error( "No file to assemble\n" );
+	}
 
 	InitTables();
 	Assemble();