diff --git a/src/yacc/parser.y b/src/yacc/parser.y
index ba73a62..1faa60f 100644
--- a/src/yacc/parser.y
+++ b/src/yacc/parser.y
@@ -63,7 +63,7 @@
 %left OpBitand OpBitor OpBitxor OpBitnot
 
 %%
-program: statement;
+program: statementlist;
 
 
 expr: ValFloat
@@ -73,9 +73,23 @@ expr: ValFloat
     | Ident
     | operation;
 
+statementlist: statementlist statement
+    | ;
+
 statement: assign
         | decl
-        | definition;
+        | definition
+        | branch;
+
+branchif: KeyIf expr '{' statementlist '}' { DEBUG("if"); };
+branchelse: KeyElse '{' statementlist '}' { DEBUG("if-else"); };
+branchelseif: KeyElse KeyIf expr '{' statementlist '}' { DEBUG("else-if"); };
+
+branchelseifs: branchelseifs branchelseif
+    | ;
+
+branch: branchif branchelseifs
+    | branchif branchelseifs branchelse;
 
 identlist: Ident ',' identlist
         | Ident