diff --git a/lib/emscripten/src/lib.rs b/lib/emscripten/src/lib.rs
index af77b4a4e..c37e34d8e 100644
--- a/lib/emscripten/src/lib.rs
+++ b/lib/emscripten/src/lib.rs
@@ -459,7 +459,7 @@ impl EmscriptenGlobals {
         }
 
         let (table_min, table_max) = get_emscripten_table_size(&module)?;
-        let (memory_min, memory_max, shared) = get_emscripten_memory_size(&module);
+        let (memory_min, memory_max, shared) = get_emscripten_memory_size(&module)?;
 
         // Memory initialization
         let memory_type = MemoryDescriptor {
diff --git a/lib/emscripten/src/utils.rs b/lib/emscripten/src/utils.rs
index 84ad7486d..af60215a9 100644
--- a/lib/emscripten/src/utils.rs
+++ b/lib/emscripten/src/utils.rs
@@ -41,13 +41,12 @@ pub fn get_emscripten_table_size(module: &Module) -> Result<(u32, Option<u32>),
     Ok((table.minimum, table.maximum))
 }
 
-pub fn get_emscripten_memory_size(module: &Module) -> (Pages, Option<Pages>, bool) {
-    assert!(
-        module.info().imported_tables.len() > 0,
-        "Emscripten requires at least one imported memory"
-    );
+pub fn get_emscripten_memory_size(module: &Module) -> Result<(Pages, Option<Pages>, bool), String> {
+    if module.info().imported_tables.len() == 0 {
+        return Err("Emscripten requires at least one imported memory".to_string());
+    }
     let (_, memory) = &module.info().imported_memories[ImportedMemoryIndex::new(0)];
-    (memory.minimum, memory.maximum, memory.shared)
+    Ok((memory.minimum, memory.maximum, memory.shared))
 }
 
 /// Reads values written by `-s EMIT_EMSCRIPTEN_METADATA=1`