diff --git a/src/api/api_rcf.cpp b/src/api/api_rcf.cpp
index 4ba440266..e02522a75 100644
--- a/src/api/api_rcf.cpp
+++ b/src/api/api_rcf.cpp
@@ -251,7 +251,7 @@ extern "C" {
 
     Z3_string Z3_API Z3_rcf_num_to_decimal_string(Z3_context c, Z3_rcf_num a, unsigned prec) {
         Z3_TRY;
-        LOG_Z3_rcf_num_to_string(c, a);
+        LOG_Z3_rcf_num_to_decimal_string(c, a, prec);
         RESET_ERROR_CODE();
         reset_rcf_cancel(c);
         std::ostringstream buffer;