diff --git a/prodos.cpp b/prodos.cpp
index f141d0b..2edd066 100644
--- a/prodos.cpp
+++ b/prodos.cpp
@@ -414,7 +414,7 @@ void readVolume( int nArg, const char *aArg[], int *iArg )
 // ========================================================================
 int main( const int nArg, const char *aArg[] )
 {
-    int   iArg = 1; // DSK is 1st arg
+    int   iArg              = 1; // DSK is 1st arg
     char *pathname_filename = NULL;
     char *auto_dsk_name     = getenv( "PRODOS_VOLUME" );