diff --git a/openmp/libomptarget/src/private.h b/openmp/libomptarget/src/private.h
--- a/openmp/libomptarget/src/private.h
+++ b/openmp/libomptarget/src/private.h
@@ -66,17 +66,19 @@
 // implementation for fatal messages
 ////////////////////////////////////////////////////////////////////////////////
 
-#define FATAL_MESSAGE0(_num, _str)                                    \
-  do {                                                                \
-    fprintf(stderr, "Libomptarget fatal error %d: %s\n", _num, _str); \
-    exit(1);                                                          \
+#define FATAL_MESSAGE0(_num, _str)                                             \
+  do {                                                                         \
+    fprintf(stderr, "Libomptarget fatal error %d: %s\n", _num, _str);          \
+    fflush(stderr);                                                            \
+    abort();                                                                   \
   } while (0)
 
-#define FATAL_MESSAGE(_num, _str, ...)                              \
-  do {                                                              \
-    fprintf(stderr, "Libomptarget fatal error %d:" _str "\n", _num, \
-            __VA_ARGS__);                                           \
-    exit(1);                                                        \
+#define FATAL_MESSAGE(_num, _str, ...)                                         \
+  do {                                                                         \
+    fprintf(stderr, "Libomptarget fatal error %d:" _str "\n", _num,            \
+            __VA_ARGS__);                                                      \
+    fflush(stderr);                                                            \
+    abort();                                                                   \
   } while (0)
 
 // Implemented in libomp, they are called from within __tgt_* functions.