(no commit message)

diff --git a/MagickCore/thread-private.h b/MagickCore/thread-private.h
index 6b726c21599a0af5a75dcd68b9414929cc4b8c28..497f13fba9cbb05764a51fea4204fe53ad34ec1d 100644 (file)
--- a/MagickCore/thread-private.h
+++ b/MagickCore/thread-private.h
@@ -124,7 +124,7 @@ static inline int GetOpenMPThreadId(void)
 static inline void SetOpenMPMaximumThreads(const int threads)
 {
 #if defined(MAGICKCORE_OPENMP_SUPPORT) && (_OPENMP >= 200203)
-  omp_set_num_threads(threads);
+  omp_set_num_threads(threads < 1 ? 1 : threads);
 #else
   (void) threads;
 #endif