diff --git a/src/main/java/dk/camelot64/kickc/parser/KickC.g4 b/src/main/java/dk/camelot64/kickc/parser/KickC.g4
index 6ddf1e7c9..f16a05d50 100644
--- a/src/main/java/dk/camelot64/kickc/parser/KickC.g4
+++ b/src/main/java/dk/camelot64/kickc/parser/KickC.g4
@@ -115,7 +115,6 @@ switchCase:
     'case' expr ':' stmtSeq?
     ;
 
-
 forLoop
     : forClassicInit ';' commaExpr ';' commaExpr? #forClassic
     | declTypes? NAME ':' expr ( '..' ) expr #forRange
diff --git a/src/main/java/dk/camelot64/kickc/passes/Pass0GenerateStatementSequence.java b/src/main/java/dk/camelot64/kickc/passes/Pass0GenerateStatementSequence.java
index 6386f39f0..e61f84a38 100644
--- a/src/main/java/dk/camelot64/kickc/passes/Pass0GenerateStatementSequence.java
+++ b/src/main/java/dk/camelot64/kickc/passes/Pass0GenerateStatementSequence.java
@@ -4,6 +4,7 @@ import dk.camelot64.kickc.Compiler;
 import dk.camelot64.kickc.NumberParser;
 import dk.camelot64.kickc.asm.AsmClobber;
 import dk.camelot64.kickc.model.*;
+import dk.camelot64.kickc.model.InternalError;
 import dk.camelot64.kickc.model.operators.*;
 import dk.camelot64.kickc.model.statements.*;
 import dk.camelot64.kickc.model.symbols.*;
@@ -972,6 +973,11 @@ public class Pass0GenerateStatementSequence extends KickCBaseVisitor<Object> {
       return null;
    }
 
+   @Override
+   public Object visitStmtSwitch(KickCParser.StmtSwitchContext ctx) {
+      throw new InternalError("switch() is not supported in this version of the compiler.");
+   }
+
    @Override
    public Object visitStmtFor(KickCParser.StmtForContext ctx) {
       this.visit(ctx.forLoop());
diff --git a/src/test/kc/cast-error.kc b/src/test/kc/cast-error.kc
new file mode 100644
index 000000000..842eba103
--- /dev/null
+++ b/src/test/kc/cast-error.kc
@@ -0,0 +1,6 @@
+// Results in exception instead of a nice error message
+// Reported by Paul Gardner-Stephen
+
+void main() {
+    *$d020 = $01;
+}
\ No newline at end of file