diff --git a/spring-geode/src/main/java/org/springframework/geode/cache/AsyncInlineCachingRegionConfigurer.java b/spring-geode/src/main/java/org/springframework/geode/cache/AsyncInlineCachingRegionConfigurer.java
index 23922120..6b5dfb84 100644
--- a/spring-geode/src/main/java/org/springframework/geode/cache/AsyncInlineCachingRegionConfigurer.java
+++ b/spring-geode/src/main/java/org/springframework/geode/cache/AsyncInlineCachingRegionConfigurer.java
@@ -233,7 +233,7 @@ public class AsyncInlineCachingRegionConfigurer<T, ID> implements RegionConfigur
 
 		Assert.hasText(regionBeanName, () -> String.format("Region bean name [%s] must be specified", regionBeanName));
 
-		return regionBeanName.concat(String.format("-AEQ:%s", UUID.randomUUID().toString()));
+		return regionBeanName.concat(String.format("-AEQ-%s", UUID.randomUUID().toString()));
 	}
 
 	/**
diff --git a/spring-geode/src/test/java/org/springframework/geode/cache/AsyncInlineCachingRegionConfigurerUnitTests.java b/spring-geode/src/test/java/org/springframework/geode/cache/AsyncInlineCachingRegionConfigurerUnitTests.java
index b14c1ab9..2e6c47d6 100644
--- a/spring-geode/src/test/java/org/springframework/geode/cache/AsyncInlineCachingRegionConfigurerUnitTests.java
+++ b/spring-geode/src/test/java/org/springframework/geode/cache/AsyncInlineCachingRegionConfigurerUnitTests.java
@@ -278,7 +278,7 @@ public class AsyncInlineCachingRegionConfigurerUnitTests {
 		AsyncInlineCachingRegionConfigurer<?, ?> regionConfigurer =
 			new AsyncInlineCachingRegionConfigurer<>(mockRepository, Predicate.isEqual("TestRegion"));
 
-		assertThat(regionConfigurer.generateId("MockRegion")).startsWith("MockRegion-AEQ:");
+		assertThat(regionConfigurer.generateId("MockRegion")).startsWith("MockRegion-AEQ-");
 
 		verifyNoInteractions(mockRepository);
 	}