Index: trunk/psastro/src/psastroUtils.c
===================================================================
--- trunk/psastro/src/psastroUtils.c	(revision 11472)
+++ trunk/psastro/src/psastroUtils.c	(revision 11532)
@@ -19,5 +19,5 @@
     // (microns/pixel), which may depend on the chip
 
-    float pixelScaleUse, pixelScale1,  pixelScale2,  pixelScale;
+    float pixelScaleUse = 1.0, pixelScale1 = 1.0,  pixelScale2 = 1.0,  pixelScale = 1.0;
 
     char *option = psMetadataLookupStr (NULL, recipe, "PSASTRO.COMMON.SCALE.OPTION");