diff --git a/src/cl/pyopencl-complex.h b/src/cl/pyopencl-complex.h
index e6f07977e8c65a981256a5086b8dc6f481d32b46..005ffab3dd68e5d08b8b48df02de9a5dd66a6c7b 100644
--- a/src/cl/pyopencl-complex.h
+++ b/src/cl/pyopencl-complex.h
@@ -59,6 +59,11 @@
     return a*b; \
   } \
   \
+  TP TPROOT##_rmul(REAL_TP a, TP b) \
+  { \
+    return a*b; \
+  } \
+  \
   TP TPROOT##_rdivide(REAL_TP z1, TP z2) \
   { \
     if (fabs(z2.x) <= fabs(z2.y)) { \