diff --git a/starknet/src/space/space.cairo b/starknet/src/space/space.cairo
index bd8565e5..2af235c4 100644
--- a/starknet/src/space/space.cairo
+++ b/starknet/src/space/space.cairo
@@ -259,7 +259,7 @@ mod Space {
                     proposal_validation_strategy.params.span(),
                     user_proposal_validation_params.span()
                 );
-            assert(is_valid, 'Proposal is not valid');
+            assert(is_valid, 'Proposal validation failed');
 
             // The snapshot block timestamp is the start of the voting period
             let start_timestamp = info::get_block_timestamp().try_into().unwrap()
diff --git a/starknet/src/tests/space/space.cairo b/starknet/src/tests/space/space.cairo
index 58259d7a..c844b05f 100644
--- a/starknet/src/tests/space/space.cairo
+++ b/starknet/src/tests/space/space.cairo
@@ -446,7 +446,7 @@ mod tests {
 
     #[test]
     #[available_gas(10000000000)]
-    #[should_panic(expected: ('Proposal is not valid', 'ENTRYPOINT_FAILED'))]
+    #[should_panic(expected: ('Proposal validation failed', 'ENTRYPOINT_FAILED'))]
     fn propose_failed_validation() {
         let config = setup();
         let (_, space) = deploy(@config);