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-rw-r--r--src/Output3D.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/Output3D.c b/src/Output3D.c
index 25a98a7..ecb72fa 100644
--- a/src/Output3D.c
+++ b/src/Output3D.c
@@ -61,7 +61,7 @@ int IOFlexIO_Output3DGH (cGH *GH)
myGH = (flexioGH *) GH->extensions [CCTK_GHExtensionHandle ("IOFlexIO")];
if (myGH->IO_3Devery <= 0)
- return;
+ return 0;
/* Loop over all variables */
for (i = 0; i < CCTK_NumVars (); i++) {