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-rw-r--r--src/FlatBoundary.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/FlatBoundary.c b/src/FlatBoundary.c
index e6cb733..dd597de 100644
--- a/src/FlatBoundary.c
+++ b/src/FlatBoundary.c
@@ -127,7 +127,7 @@ CCTK_INT BndFlat(const cGH *GH, CCTK_INT num_vars, CCTK_INT *vars,
CCTK_VWarn(1, __LINE__, __FILE__, CCTK_THORNSTRING,
"Faces specification %d for Flat boundary conditions on "
"%s is not implemented yet. "
- "Applying Flat bcs to all (external) faces.", faces[i],
+ "Applying Flat bcs to all (external) faces.", (int)faces[i],
CCTK_VarName(vars[i]));
}
dir = 0; /* apply bc to all faces */