1 files changed, 4 insertions, 3 deletions

diff --git a/src/solvers/h48/solve.h b/src/solvers/h48/solve.h
index b67aedc..c2dce91 100644
--- a/src/solvers/h48/solve.h
+++ b/src/solvers/h48/solve.h
@@ -4,7 +4,7 @@ typedef struct {
         int8_t nmoves;
         int8_t depth;
         uint8_t moves[MAXLEN];
-        int64_t *nsols;
+        _Atomic int64_t *nsols;
         int64_t maxsolutions;
         uint8_t h;
         uint8_t k;
@@ -167,7 +167,7 @@ solve_h48(
         char *solutions
 )
 {
-        int64_t nsols;
+        _Atomic int64_t nsols;
         dfsarg_solveh48_t arg;
         tableinfo_t info;
 
@@ -199,6 +199,7 @@ solve_h48(
                 arg.npremoves = 0;
                 solve_h48_dfs(&arg);
         }
-
+        **arg.nextsol = '\0';
+        (*arg.nextsol)++;
         return nsols;
 }