diff --git a/driver/iverilog.man b/driver/iverilog.man
index 05245a5b9..a7a4f743e 100644
--- a/driver/iverilog.man
+++ b/driver/iverilog.man
@@ -66,6 +66,11 @@ other tools.
 .TP 8
 .B -gverilog-ams\fI|-fP-gno-verilog-ams
 Enable or disable (default) support for Verilog-AMS.
+Very little Verilog-AMS specific functionality is currently supported.
+.TP 8
+.B -gsystem-verilog\fI|-fP-gno-system-verilog
+Enable or disable (default) support for SystemVerilog.
+Very little SystemVerilog specific functionality is currently supported.
 .TP 8
 .B -gspecify\fI|\fP-gno-specify
 Enable or disable (default) specify block support. When enabled,
diff --git a/driver/main.c b/driver/main.c
index d53e3ab4c..b97decf7a 100644
--- a/driver/main.c
+++ b/driver/main.c
@@ -626,6 +626,9 @@ int process_generation(const char*name)
       else if (strcmp(name,"system-verilog") == 0)
 	    gen_system_verilog = "system-verilog";
 
+      else if (strcmp(name,"no-system-verilog") == 0)
+	    gen_verilog_ams = "no-system-verilog";
+
       else {
 	    fprintf(stderr, "Unknown/Unsupported Language generation "
 		    "%s\n\n", name);
@@ -636,6 +639,7 @@ int process_generation(const char*name)
 		            "Other generation flags:\n"
 		            "    specify | no-specify\n"
 		            "    verilog-ams | no-verilog-ams\n"
+		            "    system-verilog | no-system-verilog\n"
 		            "    std-include | no-std-include\n"
 		            "    relative-include | no-relative-include\n"
 		            "    xtypes | no-xtypes\n"