1 files changed, 2 insertions, 1 deletions

diff --git a/src/formula.h b/src/formula.h
index c57c4bb..c88e409 100644
--- a/src/formula.h
+++ b/src/formula.h
@@ -44,8 +44,9 @@ namespace Bu
                 {
                 }
 
-                prec run( const char *sFormula )
+                prec run( const Bu::FString &sFormulaSrc )
                 {
+                        const char *sFormula = sFormulaSrc.getStr();
                         for(;;)
                         {
                                 uint8_t tNum = nextToken( &sFormula );