diff --git a/src/main/java/net/fabricmc/loom/util/LoomDependencyManager.java b/src/main/java/net/fabricmc/loom/util/LoomDependencyManager.java
index 727b415..6be8fee 100644
--- a/src/main/java/net/fabricmc/loom/util/LoomDependencyManager.java
+++ b/src/main/java/net/fabricmc/loom/util/LoomDependencyManager.java
@@ -111,7 +111,7 @@ public class LoomDependencyManager {
 		}
 
 		{
-			String mappingsKey = mappingsProvider.mappingsName + "." + mappingsProvider.mappingsVersion;
+			String mappingsKey = mappingsProvider.mappingsName + "." + mappingsProvider.minecraftVersion.replace(' ', '_').replace('.', '_').replace('-', '_') + "." + mappingsProvider.mappingsVersion;
 
 			for (RemappedConfigurationEntry entry : Constants.MOD_COMPILE_ENTRIES) {
 				ModCompileRemapper.remapDependencies(