diff --git a/lib/compress.js b/lib/compress.js
index 3820a3ad..e61954c6 100644
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -1815,7 +1815,11 @@ merge(Compressor.prototype, {
             var node = compressor.self(), level = 0;
             do {
                 if (node instanceof AST_Catch) {
-                    if (!compressor.parent(level).bfinally) level++;
+                    if (compressor.parent(level).bfinally) {
+                        if (!in_try) in_try = {};
+                        in_try.bfinally = true;
+                    }
+                    level++;
                 } else if (node instanceof AST_Finally) {
                     level++;
                 } else if (node instanceof AST_IterationStatement) {
@@ -1824,7 +1828,9 @@ merge(Compressor.prototype, {
                     scope = node;
                     break;
                 } else if (node instanceof AST_Try) {
-                    if (!in_try) in_try = node;
+                    if (!in_try) in_try = {};
+                    if (node.bcatch) in_try.bcatch = true;
+                    if (node.bfinally) in_try.bfinally = true;
                 }
             } while (node = compressor.parent(level++));
         }
diff --git a/test/compress/collapse_vars.js b/test/compress/collapse_vars.js
index 4e133768..0df9d72f 100644
--- a/test/compress/collapse_vars.js
+++ b/test/compress/collapse_vars.js
@@ -9412,3 +9412,73 @@ issue_4977_2: {
     }
     expect_stdout: "PASS PASS"
 }
+
+issue_5112_1: {
+    options = {
+        collapse_vars: true,
+    }
+    input: {
+        console.log(function(a) {
+            try {
+                try {
+                    if (console + (a = "PASS", ""))
+                        return "FAIL 1";
+                    a.p;
+                } catch (e) {}
+            } finally {
+                return a;
+            }
+        }("FAIL 2"));
+    }
+    expect: {
+        console.log(function(a) {
+            try {
+                try {
+                    if (console + (a = "PASS", ""))
+                        return "FAIL 1";
+                    a.p;
+                } catch (e) {}
+            } finally {
+                return a;
+            }
+        }("FAIL 2"));
+    }
+    expect_stdout: "PASS"
+}
+
+issue_5112_2: {
+    options = {
+        collapse_vars: true,
+    }
+    input: {
+        console.log(function(a) {
+            try {
+                return function() {
+                    try {
+                        if (console + (a = "PASS", ""))
+                            return "FAIL 1";
+                        a.p;
+                    } catch (e) {}
+                }();
+            } finally {
+                return a;
+            }
+        }("FAIL 2"));
+    }
+    expect: {
+        console.log(function(a) {
+            try {
+                return function() {
+                    try {
+                        if (console + (a = "PASS", ""))
+                            return "FAIL 1";
+                        a.p;
+                    } catch (e) {}
+                }();
+            } finally {
+                return a;
+            }
+        }("FAIL 2"));
+    }
+    expect_stdout: "PASS"
+}