Index: openmp/libomptarget/plugins/cuda/src/rtl.cpp
===================================================================
--- openmp/libomptarget/plugins/cuda/src/rtl.cpp
+++ openmp/libomptarget/plugins/cuda/src/rtl.cpp
@@ -31,8 +31,11 @@
   do {                                                                         \
     if (getDebugLevel() > 0) {                                                 \
       const char *errStr;                                                      \
-      cuGetErrorString(err, &errStr);                                          \
-      DP("CUDA error is: %s\n", errStr);                                       \
+      CUresult errStr_status = cuGetErrorString(err, &errStr);                 \
+      if (errStr_status != CUDA_SUCCESS)                                       \
+        DP("unrecognized CUDA error code: %d\n", err);                         \
+      else                                                                     \
+        DP("CUDA error is: %s\n", errStr);                                     \
     }                                                                          \
   } while (false)
 #else // OMPTARGET_DEBUG