diff --git a/internal/schema/0.12/data_block.go b/internal/schema/0.12/data_block.go
index 6b1ff8f2..64187dd8 100644
--- a/internal/schema/0.12/data_block.go
+++ b/internal/schema/0.12/data_block.go
@@ -64,6 +64,7 @@ func datasourceBlockSchema(v *version.Version) *schema.BlockSchema {
 							schema.Reference{OfScopeId: refscope.DataScope},
 							schema.Reference{OfScopeId: refscope.ModuleScope},
 							schema.Reference{OfScopeId: refscope.ResourceScope},
+							schema.Reference{OfScopeId: refscope.VariableScope},
 						},
 					},
 					IsOptional:  true,
diff --git a/internal/schema/0.12/output_block.go b/internal/schema/0.12/output_block.go
index 248e80f3..e8e34b28 100644
--- a/internal/schema/0.12/output_block.go
+++ b/internal/schema/0.12/output_block.go
@@ -55,6 +55,7 @@ func outputBlockSchema() *schema.BlockSchema {
 							schema.Reference{OfScopeId: refscope.DataScope},
 							schema.Reference{OfScopeId: refscope.ModuleScope},
 							schema.Reference{OfScopeId: refscope.ResourceScope},
+							schema.Reference{OfScopeId: refscope.VariableScope},
 						},
 					},
 					IsOptional:  true,
diff --git a/internal/schema/0.12/resource_block.go b/internal/schema/0.12/resource_block.go
index 0b036369..8b135398 100644
--- a/internal/schema/0.12/resource_block.go
+++ b/internal/schema/0.12/resource_block.go
@@ -64,6 +64,7 @@ func resourceBlockSchema(v *version.Version) *schema.BlockSchema {
 							schema.Reference{OfScopeId: refscope.DataScope},
 							schema.Reference{OfScopeId: refscope.ModuleScope},
 							schema.Reference{OfScopeId: refscope.ResourceScope},
+							schema.Reference{OfScopeId: refscope.VariableScope},
 						},
 					},
 					IsOptional:  true,
diff --git a/internal/schema/0.13/module_block.go b/internal/schema/0.13/module_block.go
index 2a037c80..a6d8cf50 100644
--- a/internal/schema/0.13/module_block.go
+++ b/internal/schema/0.13/module_block.go
@@ -81,6 +81,7 @@ func moduleBlockSchema() *schema.BlockSchema {
 							schema.Reference{OfScopeId: refscope.DataScope},
 							schema.Reference{OfScopeId: refscope.ModuleScope},
 							schema.Reference{OfScopeId: refscope.ResourceScope},
+							schema.Reference{OfScopeId: refscope.VariableScope},
 						},
 					},
 					IsOptional:  true,
diff --git a/internal/schema/1.5/check.go b/internal/schema/1.5/check.go
index 8ca2ff5e..175baaae 100644
--- a/internal/schema/1.5/check.go
+++ b/internal/schema/1.5/check.go
@@ -85,6 +85,7 @@ func scopedDataBlock() *schema.BlockSchema {
 							schema.Reference{OfScopeId: refscope.DataScope},
 							schema.Reference{OfScopeId: refscope.ModuleScope},
 							schema.Reference{OfScopeId: refscope.ResourceScope},
+							schema.Reference{OfScopeId: refscope.VariableScope},
 						},
 					},
 					IsOptional:  true,