Index: /trunk/psModules/src/detrend/pmDetrendDB.c
===================================================================
--- /trunk/psModules/src/detrend/pmDetrendDB.c	(revision 11477)
+++ /trunk/psModules/src/detrend/pmDetrendDB.c	(revision 11478)
@@ -114,5 +114,5 @@
     }
     if (options->exptime > -1.0) {
-        psStringAppend(&line, " -exptime %f", options->exptime);
+        psStringAppend(&line, " -exp_time %f", options->exptime);
     }
     if (options->airmass > -1.0) {