X-Git-Url: https://svn.cri.ensmp.fr/git/linpy.git/blobdiff_plain/4162c0430092e0ba2b8d8d62b5de24cdd71abe3b..0dba74e5eb85b09a85f0a986c3fbc6b5fcacceac:/linpy/linexprs.py

diff --git a/linpy/linexprs.py b/linpy/linexprs.py
index 3c00f22..f361218 100644
--- a/linpy/linexprs.py
+++ b/linpy/linexprs.py
@@ -306,7 +306,7 @@ class LinExpr:
         for symbol in substitutions:
             if not isinstance(symbol, Symbol):
                 raise TypeError('symbols must be Symbol instances')
-        result = self._constant
+        result = Rational(self._constant)
         for symbol, coefficient in self._coefficients.items():
             expression = substitutions.get(symbol, symbol)
             result += coefficient * expression