1 files changed, 2 insertions, 1 deletions
diff --git a/src/printf.c b/src/printf.c
index 2e09431bf..186e95bb8 100644
--- a/src/printf.c
+++ b/src/printf.c
@@ -534,13 +534,14 @@ void sqlite3_str_vappendf(
         }
 
         exp = s.iDP-1;
-        if( xtype==etGENERIC && precision>0 ) precision--;
 
         /*
         ** If the field type is etGENERIC, then convert to either etEXP
         ** or etFLOAT, as appropriate.
         */
         if( xtype==etGENERIC ){
+          assert( precision>0 );
+          precision--;
           flag_rtz = !flag_alternateform;
           if( exp<-4 || exp>precision ){
             xtype = etEXP;