diff --git a/src/SOCgen.c b/src/SOCgen.c
index 0632671..8559178 100644
--- a/src/SOCgen.c
+++ b/src/SOCgen.c
@@ -592,7 +592,7 @@ int main(int argc, char *argv[]) {
     const int num_cycles = find_cycles(cycles, cyclescnt, n, children, \
         childrenlen);
     // If enabled, ignore DAGs
-    if (NONDAGONLY && num_cycles > 0) continue;
+    if (NONDAGONLY && num_cycles == 0) continue;
     // Test the Siblings-On-Cycles property
     // A DAG is trivially a SOC
     if (num_cycles > 0 && !gissoc(n, parents, parentslen, children, \