diff --git a/compiler/src/dmd/dsymbolsem.d b/compiler/src/dmd/dsymbolsem.d
index 2e8225108b6c..0b2117c4ca91 100644
--- a/compiler/src/dmd/dsymbolsem.d
+++ b/compiler/src/dmd/dsymbolsem.d
@@ -647,6 +647,11 @@ Dsymbol search_correct(Scope* _this, Identifier ident)
             // https://github.com/dlang/dmd/issues/18763
             if (decl.isAliasDeclaration() && decl.inuse)
                 return null;
+
+            // Same reasoning, but for a variable whose own initializer
+            // is still being resolved. https://github.com/dlang/dmd/issues/20411
+            if (decl.isVarDeclaration() && sc.varDecl == decl)
+                return null;
         }
         // Or `deprecated` ones if we're not in a deprecated scope
         if (s.isDeprecated() && !sc.isDeprecated())
@@ -2410,7 +2415,10 @@ private extern(C++) final class DsymbolSemanticVisitor : Visitor
                 return;
             }
             //printf("inferring type for %s with init %s\n", dsym.toChars(), dsym._init.toChars());
+            sc = sc.push();
+            sc.varDecl = dsym; // https://github.com/dlang/dmd/issues/20411
             dsym._init = dsym._init.inferInitializerType(sc, dsym.type, global.errorSink);
+            sc = sc.pop();
             dsym.type = dsym._init.initializerToExpression(null, sc.inCfile).type;
 
             if (autoDollarDims.length)
diff --git a/compiler/test/fail_compilation/fix20411.d b/compiler/test/fail_compilation/fix20411.d
new file mode 100644
index 000000000000..3770a7a5fea9
--- /dev/null
+++ b/compiler/test/fail_compilation/fix20411.d
@@ -0,0 +1,9 @@
+/*
+TEST_OUTPUT:
+---
+fail_compilation/fix20411.d(9): Error: undefined identifier `AlmostSimilar`
+---
+*/
+
+// https://github.com/dlang/dmd/issues/20411
+const almostSimilar = AlmostSimilar;