1 files changed, 7 insertions, 6 deletions
diff --git a/src/qms.c b/src/qms.c
index a82cc01..a1366bd 100644
--- a/src/qms.c
+++ b/src/qms.c
@@ -28,12 +28,13 @@
 
 #define CPINDEX(cp, i, j, k) ((k * cp->grid_size[1] + j) * cp->grid_size[0] + i)
 
-#define qms_assert(x)                                   \
-do {                                                    \
-    if (!(x)) {                                         \
-        fprintf(stderr, "Assertion " #x " failed\n");   \
-        abort();                                        \
-    }                                                   \
+#define qms_assert(x)                                       \
+do {                                                        \
+    if (!(x)) {                                             \
+        fprintf(stderr, "%s:%d assertion " #x " failed\n",  \
+                __FILE__, __LINE__);                        \
+        abort();                                            \
+    }                                                       \
 } while (0)
 
 /* precomputed values for a given refined grid */