diff --git a/src/psyclone/domain/gocean/transformations/gocean_opencl_trans.py b/src/psyclone/domain/gocean/transformations/gocean_opencl_trans.py
index 90d680b92b..e1d6528728 100644
--- a/src/psyclone/domain/gocean/transformations/gocean_opencl_trans.py
+++ b/src/psyclone/domain/gocean/transformations/gocean_opencl_trans.py
@@ -189,11 +189,16 @@ def validate(self, node, options=None):
 
         # Check that we can construct the PSyIR and SymbolTable of each of
         # the kernels in this Schedule. Also check that none of them access
-        # any form of global data (that is not a routine argument).
+        # any form of global data (that is not a routine argument or a compile-
+        # time constant).
         for kern in node.kernels():
             KernelModuleInlineTrans().validate(kern)
             ksched = kern.get_kernel_schedule()
             global_variables = ksched.symbol_table.imported_symbols
+            for sym in global_variables[:]:
+                # Compile-time constants are fine.
+                if isinstance(sym, DataSymbol) and sym.is_constant:
+                    global_variables.remove(sym)
             if global_variables:
                 raise TransformationError(
                     f"The Symbol Table for kernel '{kern.name}' contains the "